[Code of Federal Regulations]
[Title 40, Volume 3]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR52.26]

[Page 63-64]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 52--APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS--Table of Contents
 
                      Subpart A--General Provisions
 
Sec. 52.26  Visibility monitoring strategy.

    (a) Plan Disapprovals. The provisions of this section are applicable 
to any State implementation plan which has been disapproved with respect 
to visibility monitoring. Specific disapprovals are listed where 
applicable in Subparts B through DD of this part. The provisions of this 
section have been incorporated by reference into the applicable 
implementation plan for various States, as provided in Subparts B 
through DDD of this part.
    (b) Definitions. For the purposes of this section:
    (1) Visibility protection area means any area listed in 40 CFR 
81.401-81.436 (1984).
    (2) All other terms shall have the meaning ascribed to them in the 
Clean Air Act, or in the protection of visibility program (40 CFR 
51.301), all as in effect on July 12, 1985.
    (c) Monitoring Requirements. (1) The Administrator, in cooperation 
with the appropriate Federal land manager, shall monitor visibility 
within each visibility protection area in any State whose State 
implementation plan is subject to a disapproval for failure to satisfy 
40 CFR 51.305 (1984).
    (2) The Administrator, in monitoring visibility within each such 
area, shall determine both background visibility conditions and 
reasonably attributable visibility impairment caused by a source or 
small group of sources for that area. The extent and the form of 
monitoring shall be sufficient for use in determining the potential 
effects of a new stationary source on visibility in the area, the 
stationary source or sources that are causing any visibility impairment, 
and progress toward remedying that impairment.
    (3) The Administrator shall use the following as appropriate to 
monitor visibility within each such area: (i)

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photographic cameras, (ii) fine particulate matter samplers, (iii) 
teleradiometers, (iv) nephelometers, (v) human observation, or (vi) 
other appropriate technology.
    (4) The Administrator, in cooperation with the Federal land 
managers, shall prepare monitoring plans that describe, to the maximum 
extent practicable, the methods and instruments of data collection, the 
monitoring locations and frequencies, the implementation schedule, the 
quality assurance procedures, and the methods of data reporting that the 
Administrator will use for each area. The Administrator shall make these 
plans available to the public.
    (5) The Administrator shall establish a central repository of 
monitoring data that includes any data on background visibility 
conditions and reasonably attributable impairment that the Administrator 
collects under this section and that the Federal land manager may 
collect or may have collected independently. These data shall be 
available to any person, subject to reasonable charges for copying.
    (d) Monitoring Plan Revision. (1) The Administrator shall review the 
monitoring plan annually for each visibility protection area, revise it 
as necessary, and include an assessment of changes to visibility 
conditions since the last review. The Administrator shall make all plan 
revisions available to the public.
    (2) Any person may make a request to the Administrator, at any time, 
for a revision to a monitoring plan. The Administrator shall respond to 
any such request within one year.
    (e) Delegation. The Administrator may delegate, with respect to a 
particular visibility protection area, any of his functions under this 
section to any State or local air pollution control agency of any State 
whose boundaries encompass that area or to any Federal land manager with 
jurisdiction over the area.

[50 FR 28550, July 12, 1985]