[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR222.51]

[Page 272-274]
 
                        TITLE 49--TRANSPORTATION
 
       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 222_USE OF LOCOMOTIVE HORNS AT PUBLIC HIGHWAY-RAIL GRADE CROSSINGS
--Table of Contents
 
         Subpart C_Exceptions to the Use of the Locomotive Horn
 
Sec. 222.51  Under what conditions will FRA review and terminate quiet 
zone status?

    (a) New Quiet Zone--Annual risk review. (1) FRA will annually 
calculate the Quiet Zone Risk Index for each quiet zone established 
pursuant to Sec. Sec. 222.39(a)(2) (quiet zones established based on 
comparison with Nationwide Significant Risk Threshold), and 
222.39(b)(2)(ii) (quiet zones established based on approval of FRA and 
that reduce risk to a level at, or below, the Nationwide Significant 
Risk Threshold). Annual risk reviews will not be conducted for quiet 
zones established pursuant to Sec. Sec. 222.39(a)(1) (quiet zones 
established by having an SSM at every public crossing within the quiet 
zone) and Sec. Sec. 222.39(a)(3) and (b)(2)(i) (quiet zones established 
based on the risk level having been reduced to a level fully 
compensating for the absence of the train horn by use of SSMs). FRA will 
notify each public authority of the Quiet Zone Risk Index for the 
preceding calendar year for each such quiet zone in its jurisdiction.
    (2) Actions to be taken by public authority to retain quiet zone. If 
the Quiet Zone Risk Index is above the Nationwide Significant Risk 
Threshold, the quiet zone will terminate six months from the date of 
receipt of notification from FRA that the Quiet Zone Risk

[[Page 273]]

Index exceeds the Nationwide Significant Risk Threshold, unless the 
public authority takes the following actions:
    (i) Within six months after the date of receipt of notification from 
FRA that the Quiet Zone Risk Index exceeds the Nationwide Significant 
Risk Threshold, provide to the Associate Administrator a written 
commitment to lower the potential risk to the traveling public at the 
crossings within the quiet zone to a level at, or below, the Nationwide 
Significant Risk Threshold or to a level fully compensating for the 
absence of the train horn. Included in the commitment statement shall be 
a discussion of the specific steps to be taken by the public authority 
to increase safety at the crossings within the quiet zone; and
    (ii) Within three years after the date of receipt of notification 
from FRA that the Quiet Zone Risk Index exceeds the Nationwide 
Significant Risk Threshold, complete implementation of SSMs or ASMs 
sufficient to reduce the Quiet Zone Risk Index to a level at, or below, 
the Nationwide Significant Risk Threshold, or to a level that fully 
compensates for the absence of the train horn, and receive approval from 
the Associate Administrator, under the procedures set forth in Sec. 
222.39(b), for continuation of the quiet zone. If the Quiet Zone Risk 
Index is reduced to a level that fully compensates for the absence of 
the train horn, the quiet zone will be considered to have been 
established pursuant to Sec. 222.39(a)(3) and subsequent annual risk 
reviews will not be conducted for that quiet zone.
    (iii) Failure to comply with paragraph (a)(2)(i) of this section 
shall result in the termination of the quiet zone six months after the 
date of receipt of notification from FRA that the Quiet Zone Risk Index 
exceeds the Nationwide Significant Risk Threshold. Failure to comply 
with paragraph (a)(2)(ii) of this section shall result in the 
termination of the quiet zone three years after the date of receipt of 
notification from FRA that the Quiet Zone Risk Index exceeds the 
Nationwide Significant Risk Threshold.
    (b) Pre-Rule Quiet Zone--Annual risk review. (1) FRA will annually 
calculate the Quiet Zone Risk Index for each Pre-Rule Quiet Zone that 
qualified for automatic approval pursuant to Sec. Sec. 222.41(a)(2) and 
(a)(3). FRA will notify each public authority of the Quiet Zone Risk 
Index for the preceding calendar year for each such quiet zone in its 
jurisdiction. FRA will also notify each public authority if a relevant 
collision occurred at a grade crossing within the quiet zone during the 
preceding calendar year.
    (2) Pre-Rule Quiet Zone authorized under Sec. 222.41(a)(2). (i) If 
a Pre-Rule Quiet Zone originally qualified for automatic approval 
because the Quiet Zone Risk Index was at, or below, the Nationwide 
Significant Risk Threshold (Sec. 222.41(a)(2)), the quiet zone may 
continue unchanged if the Quiet Zone Risk Index as last calculated by 
FRA remains at, or below, the Nationwide Significant Risk Threshold.
    (ii) If the Quiet Zone Risk Index as last calculated by FRA is above 
the Nationwide Significant Risk Threshold, but is lower than twice the 
Nationwide Significant Risk Threshold and no relevant collisions have 
occurred at crossings within the quiet zone within the five years 
preceding the annual risk review, then the quiet zone may continue as 
though it originally received automatic approval pursuant to Sec. 
222.41(a)(3).
    (iii) If the Quiet Zone Risk Index as last calculated by FRA is at, 
or above, twice the Nationwide Significant Risk Threshold, or if the 
Quiet Zone Risk Index is above the Nationwide Significant Risk 
Threshold, but is lower than twice the Nationwide Significant Risk 
Threshold and a relevant collision occurred at a crossing within the 
quiet zone within the preceding five calendar years, the quiet zone will 
terminate six months after the date of receipt of notification from FRA 
of the Nationwide Significant Risk Threshold level, unless the public 
authority takes the actions specified in paragraph (b)(4) of this 
section.
    (3) Pre-Rule Quiet Zone authorized under Sec. 222.41(a)(3). (i) If 
a Pre-Rule Quiet Zone originally qualified for automatic approval 
because the Quiet Zone Risk Index was above the Nationwide Significant 
Risk Threshold but was below twice the Nationwide Significant Risk 
Threshold and no relevant collisions had occurred within

[[Page 274]]

the five year qualifying period (Sec. 222.41(a)(3)), the quiet zone may 
continue unchanged if the Quiet Zone Risk Index as last calculated by 
FRA remains below twice the Nationwide Significant Risk Threshold and no 
relevant collisions occurred at a public grade crossing within the quiet 
zone during the preceding calendar year.
    (ii) If the Quiet Zone Risk Index as last calculated by FRA is at, 
or above, twice the Nationwide Significant Risk Threshold, or if a 
relevant collision occurred at a public grade crossing within the quiet 
zone during the preceding calendar year, the quiet zone will terminate 
six months after the date of receipt of notification from FRA that the 
Quiet Zone Risk Index is at, or exceeds twice the Nationwide Significant 
Risk Threshold or that a relevant collision occurred at a crossing 
within the quiet zone, unless the public authority takes the actions 
specified in paragraph (b)(4) of this section.
    (4) Actions to be taken by the public authority to retain a quiet 
zone. (i) Within six months after the date of FRA notification, the 
public authority shall provide to the Associate Administrator a written 
commitment to lower the potential risk to the traveling public at the 
crossings within the quiet zone by reducing the Quiet Zone Risk Index to 
a level at, or below, the Nationwide Significant Risk Threshold or to a 
level that fully compensates for the absence of the train horn. Included 
in the commitment statement shall be a discussion of the specific steps 
to be taken by the public authority to increase safety at the public 
crossings within the quiet zone; and
    (ii) Within three years of the date of FRA notification, the public 
authority shall complete implementation of SSMs or ASMs sufficient to 
reduce the Quiet Zone Risk Index to a level at, or below, the Nationwide 
Significant Risk Threshold, or to a level that fully compensates for the 
absence of the train horn, and receive approval from the Associate 
Administrator, under the procedures set forth in Sec. 222.39(b), for 
continuation of the quiet zone. If the Quiet Zone Risk Index is reduced 
to a level that fully compensates for the absence of the train horn, the 
quiet zone will be considered to have been established pursuant to Sec. 
222.39(a)(3) and subsequent annual risk reviews will not be conducted 
for that quiet zone.
    (iii) Failure to comply with paragraph (b)(4)(i) of this section 
shall result in the termination of the quiet zone six months after the 
date of receipt of notification from FRA. Failure to comply with 
paragraph (b)(4)(ii) of this section shall result in the termination of 
the quiet zone three years after the date of receipt of notification 
from FRA.
    (c) Review at FRA's initiative. The Associate Administrator may, at 
any time, review the status of any quiet zone. If the Associate 
Administrator makes a preliminary determination that safety systems and 
measures do not fully compensate for the absence of the locomotive horn, 
or that there is a significant risk with respect to loss of life or 
serious personal injury, the Associate Administrator will provide 
written notice to the public authority and all parties listed in Sec. 
222.43(a) and will publish notice of the determination in the Federal 
Register. After providing an opportunity for comment, the Associate 
Administrator may require that additional safety measures be taken or 
that the quiet zone be terminated. The Associate Administrator's 
decision may be challenged in accordance with Sec. 222.57(b). Nothing 
in this section is intended to limit the Administrator's emergency 
authority under 49 U.S.C. 20104 and 49 CFR part 211.
    (d) Notification of termination. In the event that a quiet zone is 
terminated under the provisions of this section, it shall be the 
responsibility of the public authority to notify all parties listed in 
Sec. 222.43(a) and in the manner specified in Sec. 222.43(a), of such 
termination.
    (e) Requirement to sound the locomotive horn. Upon receipt of 
notification pursuant to paragraph (d), or upon receipt of notification 
from FRA that the quiet zone is being terminated, railroads shall, 
within seven days, and in accordance with the provisions of this part, 
sound the locomotive horn when approaching and passing through every 
public highway-rail grade crossing within the former quiet zone.

[[Page 275]]