[Code of Federal Regulations] [Title 36, Volume 1] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 36CFR7.13] [Page 63-71] TITLE 36--PARKS, FORESTS, AND PUBLIC PROPERTY CHAPTER I--NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR PART 7_SPECIAL REGULATIONS, AREAS OF THE NATIONAL PARK SYSTEM --Table of Contents Sec. 7.13 Yellowstone National Park. (a) Commercial Vehicles. (1) Notwithstanding the prohibition of commercial vehicles set forth in Sec. 5.6 of this chapter, commercial vehicles are allowed to operate on U.S. Highway 191 in accordance with the provisions of this section. (2) The transporting on U.S. Highway 191 of any substance or combination of substances, including any hazardous substance, hazardous material, or hazardous waste as defined in 49 CFR 171.8 that requires placarding of the transport vehicle in accordance with 49 CFR 177.823 or any marine pollutant that requires marking as defined in 49 CFR Subtitle B, is prohibited; provided, however, that the superintendent may issue permits and establish terms and conditions for the transportation of hazardous materials on U.S. Highway 191 in emergencies or when such transportation is necessary for access to lands within or adjacent to the park area. (3) The operator of a motor vehicle transporting any hazardous substance, hazardous material, hazardous waste, or marine pollutant in accordance with a permit issued under this section is not relieved in any manner from complying with all applicable regulations in 49 CFR Subtitle B, or with any other State or federal laws and regulations applicable to the transportation of any hazardous substance, hazardous material, hazardous waste, or marine pollutant. [[Page 64]] (4) The superintendent may require a permit and establish terms and conditions for the operation of a commercial vehicle on any park road in accordance with Sec. 1.6 of this chapter. The superintendent may charge a fee for permits in accordance with a fee schedule established annually. (5) Operating without, or violating a term or condition of, a permit issued in accordance with this section is prohibited. In addition, violating a term or condition of a permit may result in the suspension or revocation of the permit. (b) Employee motor vehicle permits: (1) A motor vehicle owned and/or operated by an employee of the U.S. Government, park concessioners and contractors, whether employed in a permanent or temporary capacity, shall be registered with the Superintendent and a permit authorizing the use of said vehicle in the park is required. This requirement also applies to members of an employee's family living in the park who own or operate a motor vehicle within the park. Such permit, issued free of charge, may be secured only when the vehicle operator can produce a valid certificate of registration, and has in his possession a valid operator's license. No motor vehicle may be operated on park roads unless properly registered. (2) The permit is valid only for the calendar year of issue. Registry must be completed and permits secured by April 15 of each year or within one week after bringing a motor vehicle into the park, whichever date is later. The permit shall be affixed to the vehicle as designated by the Superintendent. (c) [Reserved] (d) Vessels--(1) Permit. (i) A general permit, issued by the Superintendent, is required for all vessels operated upon the waters of the park open to boating. In certain areas a special permit is required as specified hereinbelow. These permits must be carried within the vessel at all times when any person is aboard, and shall be exhibited upon request to any person authorized to enforce the regulations in this chapter. (ii) A special permit shall be issued by the Superintendent to any holder of a general permit who expresses the intention to travel into either the South Arm or the Southeast Arm ``Five Mile Per Hour Zones'' of Yellowstone Lake, as defined in paragraphs (d)(6) (ii) and (iii) of this section, upon the completion and filing of a form statement in accordance with the provisions of paragraph (d)(10) of this section. (iii) Neither a general nor special permit shall be issued until the permittee has signed a statement certifying that he is familiar with the speed and all other limitations and requirements in these regulations. The applicant for a special permit shall also agree in writing to provide, in accordance with paragraph (d)(10) of this section, information concerning the actual travel within the ``Five Mile Per Hour Zones.'' (2) Removal of vessels. All privately owned vessels, boat trailers, waterborne craft of any kind, buoys, mooring floats, and anchorage equipment will not be permitted in the park prior to May 1 and must be removed by November 1. (3) Restricted landing areas. (i) Prior to July 1 of each year, the landing of any vessel on the shore of Yellowstone Lake between Trail Creek and Beaverdam Creek is prohibited, except upon written permission of the Superintendent. (ii) The landing or beaching of any vessel on the shores of Yellowstone Lake (a) within the confines of Bridge Bay Marina and Lagoon and the connecting channel with Yellowstone Lake; and (b) within the confines of Grant Village Marina and Lagoon and the connecting channel with Yellowstone Lake is prohibited except at the piers or docks provided for the purpose. (4) Closed waters. (i) Vessels are prohibited on Sylvan Lake, Eleanor Lake, Twin Lakes, and Beach Springs Lagoon. (ii) Vessels are prohibited on park rivers and streams (as differentiated from lakes and lagoons), except on the channel between Lewis Lake and Shoshone Lake, which is open only to handpropelled vessels. (5) Lewis Lake motorboat waters. Motorboats are permitted on Lewis Lake. (6) Yellowstone Lake motorboat waters. Motorboats are permitted on Yellowstone Lake except in Flat Mountain Arm as described in paragraph (d)(6)(i) [[Page 65]] of this section and as restricted within the South Arm and the Southeast Arm where operation is confined to areas known as ``Five Mile Per Hour Zones'' which waters are between the lines as described in paragraphs (d)(6) (ii) and (iii) of this section in the South Arm and Southeast Arm, but which specifically exclude the southernmost 2 miles of both Arms which are open only to hand-propelled vessels. (i) The following portion of Flat Mountain Arm of Yellowstone Lake is restricted to hand-propelled vessels: West of a line beginning at a point marked by a monument located on the south shore of the Flat Mountain Arm and approximately 10,200 feet easterly from the southwest tip of the said arm, said point being approximately 44[deg]22[min]13.2[sec] N. latitude and 110[deg]25[min]07.2[sec] W. longitude, then running approximately 2,800 feet due north to a point marked by a monument located on the north shore of the Flat Mountain Arm, said point being approximately 44[deg]22[min]40[sec] N. latitude and 110[deg]25[min]07.2[sec] W. longitude. (ii) In the South Arm that portion between a line from Plover Point running generally east to a point marked by a monument on the northwest tip of the peninsula common to the South and Southeast Arms; and a line from a monument located on the west shore of the South Arm approximately 2 miles north of the cairn which marks the extreme southern extremity of Yellowstone Lake in accordance with the Act of Congress establishing Yellowstone National Park; said point being approximately in latitude 44[deg]18[min]22.8[sec] N., at longitude 110[deg]20[min]04.8[sec] W., Greenwich Meridian, running due east to a point on the east shore of the South Arm marked by a monument. Operation of motorboats south of the latter line is prohibited. (iii) In the Southeast Arm that portion between a line from a monument on the northwest tip of the peninsula common to the South and Southeast Arms which runs generally east to a monument at the mouth of Columbine Creek; and a line from a cairn which marks the extreme eastern extremity of Yellowstone Lake, in accordance with the Act of Congress establishing Yellowstone National Park; said point being approximately in latitude 44[deg]19[min]42.0[sec] N., at longitude 110[deg]12[min]06.0[sec] W., Greenwich Meridian, running westerly to a point on the west shore of the Southeast Arm, marked by a monument; said point being approximately in latitude 44[deg]20[min]03.6[sec] N., at longitude 110[deg]16[min]19.2[sec] W., Greenwich Meridian. Operation of motorboats south of the latter line is prohibited. (7) Motorboats are prohibited on park waters except as permitted in paragraphs (d) (5) and (6) of this section. (8) Hand-propelled vessel waters. Hand-propelled vessels and sail vessels may operate in park waters except on those waters named in paragraph (d)(4) of this section. (9) Five Mile Per Hour Zone motorboat restrictions. The operation of motorboats within ``Five Mile Per Hour Zones'' is subject to the following restrictions: (i) Class 1 and Class 2 motorboats shall proceed no closer than one- quarter mile from the shoreline except to debark or embark passengers, or while moored when passengers are ashore. (ii) [Reserved] (10) Permission required to operate motorboats in Five Mile Per Hour Zone. Written authority for motorboats to enter either or both the South Arm or the Southeast Arm ``Five Mile Per Hour Zones'' shall be granted to an operator providing that prior to commencement of such entry the operator completes and files with the Superintendent a form statement showing: (i) Length, make, and number of motorboat. (ii) Type of vessel, such as inboard, inboard-outboard, turbojet, and including make and horsepower rating of motor. (iii) Name and address of head of party. (iv) Number of persons in party. (v) Number of nights planned to spend in each ``Five Mile Per Hour Zone.'' (vi) Place where camping is planned within each ``Five Mile Per Hour Zone,'' or if applicable, whether party will remain overnight on board. (11) The disturbance of birds inhabiting or nesting on either of the islands designated as ``Molly Islands'' in the Southeast Arm of Yellowstone Lake is [[Page 66]] prohibited; nor shall any vessel approach the shoreline of said islands within one-quarter mile. (12) Boat racing, water pageants, and spectacular or unsafe types of recreational use of vessels are prohibited on park waters. (e) Fishing. (1) Fishing restrictions, based on management objectives described in the park's Resources Management Plan, are established annually by the superintendent. (2) The superintendent may impose closures and establish conditions or restrictions, in accordance with the criteria and procedures of Sec. Sec. 1.5 and 1.7 of this chapter, on any activity pertaining to fishing, including, but not limited to, seasons and hours during which fishing may take place, size, creel and possession limits, species of fish that may be taken and methods of taking. (3) Closed waters. The following waters of the park are closed to fishing and are so designated by appropriate signs: (i) Pelican Creek from its mouth to a point two miles upstream. (ii) The Yellowstone River and its tributary streams from the Yellowstone Lake outlet to a point one mile downstream. (iii) The Yellowstone River and its tributary streams from the confluence of Alum Creek with the Yellowstone River upstream to the Sulphur Caldron. (iv) The Yellowstone River from the top of the Upper Falls downstream to a point directly below the overlook known as Inspiration Point. (v) Bridge Bay Lagoon and Marina and Grant Village Lagoon and Marina and their connecting channels with Yellowstone Lake. (vi) The shores of the southern extreme of the West Thumb thermal area along the shore of Yellowstone Lake to the mouth of Little Thumb Creek. (vii) The Mammoth water supply reservoir. (4) Fishing in closed waters or violating a condition or restriction established by the superintendent is prohibited. (f) Commercial passenger-carrying vehicles. The prohibition against the commercial transportation of passengers by motor vehicles in Yellowstone National Park contained in Sec. 5.4 of this chapter shall be subject to the following exception: Motor vehicles operated on an infrequent and nonscheduled tour on which the visit to the park is an incident to such tour, carrying only round trip passengers traveling from the point of origin of the tour will, subject to the conditions set forth in this paragraph, be accorded admission to the park for the purpose of delivering passengers to a point of overnight stay in the park and exit from the park. After passengers have completed their stay, such motor vehicles shall leave the park by the most convenient exit station, considering their destinations. Motor vehicles admitted to the park under this paragraph shall not, while in the park, engage in general sightseeing operations. Admission will be accorded such vehicles upon establishing to the satisfaction of the superintendent that the tour originated from such place and in such manner as not to provide in effect a regular and duplicating service conflicting with, or in competition with, the services provided for the public pursuant to contract authorization from the Secretary. The superintendent shall have the authority to specify the route to be followed by such vehicles within the park. (g) Camping. (1) Camping in Yellowstone National Park by any person, party, or organization during any calendar year during the period Labor Day through June 30, inclusive, shall not exceed 30 days, either in a single period or combined separate periods, when such limitations are posted. (2) The intensive public-use season for camping shall be the period July 1 to Labor Day. During this period camping by any person, party, or organization shall be limited to a total of 14 days either in a single period or combined separate periods. (h) Dogs and cats. Dogs and cats on leash, crated, or otherwise under physical restraint are permitted in the park only within 100 feet of established roads and parking areas. Dogs and cats are prohibited on established trails and boardwalks. (i) [Reserved] [[Page 67]] (j) Travel on trails. Foot travel in all thermal areas and within the Yellowstone Canyon between the Upper Falls and Inspiration Point must be confined to boardwalks or trails that are maintained for such travel and are marked by official signs. (k) Portable engines and motors. The operation of motor-driven chain saws, portable motor-driven electric light plants, portable motor-driven pumps, and other implements driven by portable engines and motors is prohibited in the park, except in Mammoth, Canyon, Fishing Bridge, Bridge Bay, Grant Village, and Madison Campgrounds, for park operation purposes, and for construction and maintenance projects authorized by the Superintendent. This restriction shall not apply to outboard motors on waters open to motorboating. (l)(1) What is the scope of this regulation? The regulations contained in paragraphs (l)(2) through (l)(19) of this section are intended to apply to the use of recreational and commercial snowmobiles. Except where indicated, paragraphs (l)(2) through (l)(19) do not apply to non-administrative snowmobile or snowcoach use by NPS, contractor or concessioner employees who live or work in the interior of the park, or other non-recreational users authorized by the Superintendent. (2) What terms do I need to know? This paragraph also applies to non-administrative snowmobile use by NPS, contractor or concessioner employees, or other non-recreational users authorized by the Superintendent. Commercial guide means those guides who operate as a snowmobile guide for a fee or compensation and are authorized to operate in the park under a concession contract. Non-commercial guide means those authorized guides who have successfully completed an NPS-approved training course and provide guiding services without compensation. Oversnow route means that portion of the unplowed roadway located between the road shoulders and designated by snow poles or other poles, ropes, fencing, or signs erected to regulate over-snow activity. Oversnow routes include pullouts or parking areas that are groomed or marked similarly to roadways and are adjacent to designated oversnow routes. An oversnow route may also be distinguished by the interior boundaries of the berm created by the packing and grooming of the unplowed roadway. The only motorized vehicles permitted on oversnow routes are oversnow vehicles. Oversnow vehicle means a snowmobile, snowcoach, or other motorized vehicle that is intended for travel primarily on snow and is authorized by the Superintendent to operate in the park. An oversnow vehicle that does not meet the definition of a snowcoach or a snowplane must comply with all requirements applicable to snowmobiles. Snowcoach means a self-propelled mass transit vehicle intended for travel on snow, having a curb weight of over 1000 pounds (450 kilograms), driven by a track or tracks and steered by skis or tracks, and having a capacity of at least 8 passengers. Snowplane means a self-propelled vehicle intended for oversnow travel and driven by an air-displacing propeller. (3) May I operate a snowmobile in Yellowstone National Park? You may operate a snowmobile in Yellowstone National Park in compliance with use limits and entry passes, guiding requirements, operating hours and dates, equipment, and operating conditions established pursuant to this section. The Superintendent may establish additional operating conditions and shall provide notice of those conditions in accordance with Sec. 1.7(a) of this chapter or in the Federal Register. (4) May I operate a snowcoach in Yellowstone National Park? Commercial snowcoaches may be operated in Yellowstone National Park under a concessions contract. Non-commercial snowcoaches may be operated if authorized by the Superintendent. Snowcoach operation is subject to the conditions stated in the concessions contract and all other conditions identified in this section. (i) Historic snowcoaches (Bombardier snowcoaches manufactured in 1983 or earlier) are not initially required to meet air or sound requirements. (ii) Beginning with the winter of 2005-2006, all non-historic snowcoaches [[Page 68]] must meet NPS air emissions requirements. These requirements are the EPA's emission standards for the vehicle at the time it was manufactured. (iii) Beginning with the winter of 2008-2009, all non-historic snowcoaches must meet NPS sound requirements. Snowcoaches must operate at or below 75 dB(A) as measured at 25 mph on the A-weighted scale at 50 feet using test procedures similar to Society of Automotive Engineers J1161 (revised 1983). (iv) All critical emission-related exhaust components (as defined in 40 CFR 86.004-25(b)(3)(iii) through (v)) must be functioning properly. Malfunctioning critical emissions-related components must be replaced with the original equipment manufacturer (OEM) component, where possible. Where OEM parts are not available, aftermarket parts may be used. In general, catalysts that have exceeded their useful life must be replaced unless the operator can demonstrate the catalyst is functioning properly. (v) Tampering with or disabling a snowcoach's original pollution control equipment is prohibited except for maintenance purposes. (vi) Individual snowcoaches may be subject to period inspections to determine compliance with the requirements of paragraphs (l)(4)(ii) through (l)(4)(v) of this section. (5) Must I operate a certain model of snowmobile? Only commercially available snowmobiles that meet NPS air and sound emissions requirements may be operated in the park. The Superintendent will approve snowmobile makes, models, and year of manufacture that meet those requirements. The public will be made aware of any new air or sound emissions requirements through publication in the Federal Register and using one or more of the methods listed in Sec. 1.7(a) of this chapter. Any snowmobile model not approved by the Superintendent may not be operated in the park. (6) How will the Superintendent approve snowmobile makes, models, and year of manufacture for use in the park? (i) Beginning with the 2005 model year, all snowmobiles must be certified under 40 CFR part 1051, to a Family Emission Limit no greater than 15 g/kW-hr for hydrocarbons and to a Family Emission Limit no greater than 120 g/kW-hr for carbon monoxide. (A) 2004 model year snowmobiles may use measured emissions levels (official emission results with no deterioration factors applied) to comply with the emission limits specified in paragraph (l)(6)(i) of this section. (B) Snowmobiles manufactured prior to the 2004 model year may be operated only if they have been shown to have emissions no greater than the requirements identified in paragraph (l)(6)(i) of this section. (C) The snowmobile test procedures specified by EPA (40 CFR 1051 and 1065) shall be used to measure air emissions from model year 2004 and later snowmobiles. Equivalent procedures may be used for earlier model years. (ii) For sound emissions, snowmobiles must operate at or below 73dB(A), as measured at full throttle according to Society of Automotive Engineers J192 test procedures (revised 1985). Snowmobiles may be tested at any barometric pressure equal to or above 23.4 inches Hg uncorrected. (iii) Snowmobiles not operating under a concessions contract are exempt from air and sound emissions requirements for the winter 2003- 2004 only. (iv) The Superintendent may prohibit entry into the park of any snowmobile that has been modified in a manner that may affect air or sound emissions. (7) Where must I operate my snowmobile? You must operate your snowmobile only upon designated oversnow routes established within the park in accordance with Sec. 2.18(c) of this chapter. The following oversnow routes are so designated for snowmobile use: (i) The Grand Loop Road from its junction with Terrace Springs Drive to Norris Junction. (ii) Norris Junction to Canyon Junction. (iii) The Grand Loop Road from Norris Junction to Madison Junction. (iv) The West Entrance Road from the park boundary at West Yellowstone to Madison Junction. (v) The Grand Loop Road from Madison Junction to West Thumb. (vi) The South Entrance Road from the South Entrance to West Thumb. [[Page 69]] (vii) The Grand Loop Road from West Thumb to its junction with the East Entrance Road. (viii) The East Entrance Road from the East Entrance to its junction with the Grand Loop Road. (ix) The Grand Loop Road from its junction with the East Entrance Road to Canyon Junction. (x) The South Canyon Rim Drive. (xi) Lake Butte Road. (xii) In the developed areas of Madison Junction, Old Faithful, Grant Village, Lake, Fishing Bridge, Canyon, Indian Creek, and Norris. (xiii) The Superintendent may open or close these routes, or portions thereof, for snowmobile travel after taking into consideration the location of wintering wildlife, appropriate snow cover, public safety, and other factors. Notice of such opening or closing shall be provided by one or more of the methods listed in Sec. 1.7(a) of this chapter. (xiv) This paragraph also applies to non-administrative snowmobile use by NPS, contractor or concessioner employees, or other non- recreational users authorized by the Superintendent. (xv) Maps detailing the designated oversnow routes will be available from Park Headquarters. (8) What routes are designated for snowcoach use? Authorized snowcoaches may only be operated on the routes designated for snowmobile use in paragraphs (l)(7)(i) through (l)(7)(xii) of this section and the following additional oversnow routes: (i) Firehole Canyon Drive. (ii) Fountain Flat Road. (iii) Virginia Cascades Drive. (iv) North Canyon Rim Drive. (v) Riverside Drive. (vi) That portion of the Grand Loop Road from Canyon Junction to Washburn Hot Springs overlook. (vii) The Superintendent may open or close these oversnow routes, or portions thereof, or designate new routes for snowcoach travel after taking into consideration the location of wintering wildlife, appropriate snow cover, public safety, and other factors. Notice of such opening or closing shall be provided by one or more of the methods listed in Sec. 1.7(a) of this chapter. (viii) This paragraph also applies to non-administrative snowcoach use by NPS, contractor or concessioner employees, or other non- recreational users authorized by the Superintendent. (9) Will I be required to use a guide while snowmobiling? Beginning in the winter of 2004-2005, all snowmobile operators must be accompanied by a guide who has successfully completed an NPS-approved training program. During the winter of 2003-2004 only, the twenty percent (20%) of the authorized daily snowmobile entries that are allocated to the general public do not require a guide. (10) What other requirements apply to the use of snowmobile guides? Eighty percent (80%) of the authorized daily snowmobile entries are allocated under concessions contracts for commercial guiding services while the remaining twenty percent (20%) of the authorized daily snowmobile entries are allocated to the general public for non- commercially guided parties. (i) Non-commercial guides are required to successfully complete a training program approved by the Superintendent to include training on park rules, safety considerations, and appropriate actions to minimize impacts to wildlife and other park resources. (ii) Snowmobile parties must travel in a group, including the guide. Maximum or minimum group size may be designated by the Superintendent. Notice of group size requirements shall be provided by one or more of the methods listed in Sec. 1.7(a) of this chapter. (iii) It is prohibited for non-commercial guides, or anyone else, to receive fees or other forms of compensation for non-commercial guiding services. (iv) Guided parties must travel together within a maximum of one- third mile of the first snowmobile in the group. (v) The Superintendent may change requirements related to guiding, including the commercial: non-commercial guide ratio. Except for emergency situations, changes to guiding requirements may be made on an annual basis and the public will be notified of those changes through publication in the Federal Register and by one or more [[Page 70]] of the procedures listed in Sec. 1.7(a) of this chapter. (11) Are there limits established for the numbers of snowmobiles permitted to enter the park each day? Snowmobiles allowed to enter the park each day will be limited to a specific number per entrance. The initial limits are listed in the following table: Table 1 to Sec. 7.13.--Initial Daily Snowmobile Entry Limits ---------------------------------------------------------------------------------------------------------------- Number of Number of non- commercially- commercially Total number guided guided of snowmobile Park entrance/road segment snowmobile snowmobile entrance entrance entrance passes passes passes \1\ ---------------------------------------------------------------------------------------------------------------- (i) YNP--North Entrance......................................... 40 10 50 (ii) YNP--West Entrance......................................... 440 110 550 (iii) YNP--South Entrance....................................... 200 50 250 (iv) YNP--East Entrance......................................... 80 20 100 ---------------------------------------------------------------------------------------------------------------- \1\ In the 2003-2004 winter season only, these entries will be available for unguided parties, to allow sufficient time to develop and implement a non-commercial guide training program. (v) The limits established in Table 1 to this section apply until modified by the Superintendent. The Superintendent may establish different limits, after taking into consideration the effectiveness of air and sound emissions requirements, the state of technology, monitoring results, or other relevant information. The public will be made aware of any new limits through publication in the Federal Register and using one or more of the methods listed in Sec. 1.7(a) of this chapter. (12) How will the daily snowmobile entry limits be enforced? The daily snowmobile entry limits will be enforced through at least three methods: (i) The operator of a snowmobile is required to have a reservation to obtain entry into the park and pay any fees associated with that reservation; (ii) The operator of a snowmobile is required to have an entrance pass to obtain entry into the park and pay any fees associated with that entrance pass; and, (iii) The person who makes or holds the reservation must accompany the snowmobile group while in the park. (iv) Reservations or entrance passes that have been obtained using false information, or have been altered, are invalid. Reservations or entrance passes that have been transferred or resold without the authorization of the Superintendent are invalid. The use of an invalid reservation or entrance pass is prohibited. (13) When may I operate my snowmobile or snowcoach? The Superintendent will determine operating hours and dates. Except for emergency situations, changes to operating hours or dates may be made annually and the public will be notified of those changes through one or more of the methods listed in Sec. 1.7(a) of this chapter. (14) What other conditions apply to the operation of oversnow vehicles? (i) The following are prohibited: (A) Idling an oversnow vehicle more than 5 minutes at any one time. (B) Operating an oversnow vehicle while the operator's state motor vehicle license or privilege is suspended or revoked by any state. (C) Allowing or permitting an unlicensed driver to operate an oversnow vehicle. (D) Operating an oversnow vehicle in willful or wanton disregard for the safety of persons, property, or park resources or otherwise in a reckless manner. (E) Operating an oversnow vehicle without a lighted white headlamp and red taillight. (F) Operating an oversnow vehicle that does not have brakes in good working order. (G) The towing of persons on skis, sleds or other sliding devices by oversnow vehicles, except in emergency situations. (ii) The following are required: (A) All oversnow vehicles that stop on designated routes must pull over to the far right and next to the snow [[Page 71]] berm. Pullouts must be utilized where available and accessible. Oversnow vehicles may not be stopped in a hazardous location or where the view might be obscured, or operating so slowly as to interfere with the normal flow of traffic. (B) Oversnow vehicle operators must possess a valid motor vehicle operator's license. A learner's permit does not satisfy this requirement. The license must be carried by the operator at all times. (C) Equipment sleds towed by a snowmobile must be pulled behind the snowmobile and fastened to the snowmobile with a rigid hitching mechanism. (D) Snowmobiles must be properly registered and display a valid registration from the United States or Canada. (iii) The Superintendent may impose other terms and conditions as necessary to protect park resources, visitors, or employees. The public will be notified of any changes through one or more methods listed in Sec. 1.7(a) of this chapter. (iv) This paragraph also applies to non-administrative snowmobile use by NPS, contractor or concessioner employees, or other non- recreational users as authorized by the Superintendent. (15) What conditions apply to alcohol use while operating an oversnow vehicle? In addition to the regulations contained in 36 CFR 4.23, the following conditions apply: (i) Operating or being in actual physical control of an oversnow vehicle is prohibited when the driver is under 21 years of age and the alcohol concentration in the driver's blood or breath is 0.02 grams or more of alcohol per 100 milliliters or blood or 0.02 grams or more of alcohol per 210 liters of breath. (ii) Operating or being in actual physical control of an oversnow vehicle is prohibited when the driver is a snowmobile guide or a snowcoach driver and the alcohol concentration in the operator's blood or breath is 0.04 grams or more of alcohol per 100 milliliters of blood or 0.04 grams or more of alcohol per 210 liters of breath. (iii) This paragraph also applies to non-administrative snowmobile use by NPS, contractor or concessioner employees, or other non- recreational users as authorized by the Superintendent. (16) Do other NPS regulations apply to the use of oversnow vehicles? (i) The use of oversnow vehicles in Yellowstone is not subject to Sec. Sec. 2.18 (b), (d), (e) and 2.19(b) of this chapter. (ii) This paragraph also applies to non-administrative snowmobile use by NPS, contractor or concessioner employees, or other non- recreational users as authorized by the Superintendent. (17) Are there any forms of non-motorized oversnow transportation allowed in the park? Non-motorized travel consisting of skiing, skating, snowshoeing, or walking is permitted unless otherwise restricted pursuant to this section or other provisions of 36 CFR Part 1. (i) The Superintendent may designate areas of the park as closed, reopen such areas or establish terms and conditions for non-motorized travel within the park in order to protect visitors, employees or park resources. (ii) Dog sledding or ski-jorring is prohibited. (18) May I operate a snowplane in Yellowstone? The operation of a snowplane in Yellowstone is prohibited. (19) Is violating any of the provisions of this section prohibited? Violating any of the terms, conditions or requirements of paragraphs (l)(2) through (l)(18) of this section is prohibited. Each occurrence of non-compliance with these regulations is a separate violation. (m) Swimming. The swimming or bathing in a natural, historical, or archeological thermal pool or stream that has waters originating entirely from a thermal spring or pool is prohibited. [36 FR 12014, June 24, 1971, as amended at 37 FR 24034, Nov. 11, 1972; 39 FR 9964, Mar. 15, 1974; 43 FR 21460, May 18, 1978; 45 FR 56343, Aug. 25, 1980; 48 FR 30293, June 30, 1983; 52 FR 10686, Apr. 2, 1987; 52 FR 19346, May 22, 1987; 59 FR 43736, Aug. 25, 1994; 66 FR 7265, Jan. 22, 2001; 67 FR 69477, Nov. 18, 2002; 68 FR 69282, Dec. 11, 2003]