[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR222.51]

[Page 295-299]
 
                        TITLE 49--TRANSPORTATION
 
       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 222_USE OF LOCOMOTIVE HORNS AT PUBLIC HIGHWAY-RAIL GRADE CROSSINGS--Table 
 
         Subpart C_Exceptions to the Use of the Locomotive Horn
 
Sec.  222.51  Under what conditions will quiet zone status be terminated?

    (a) New Quiet Zones--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) and 222.39(b) of this part, and in 
comparison to the Nationwide

[[Page 296]]

Significant Risk Threshold. FRA will notify each public authority of the 
Quiet Zone Risk Index for the preceding calendar year. FRA will not 
conduct annual risk reviews for quiet zones established by having an SSM 
at every public crossing within the quiet zone or for quiet zones 
established by reducing the Quiet Zone Risk Index to the Risk Index With 
Horns.
    (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 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 the Risk Index With Horns. 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 the Risk Index With Horns, 
and receive approval from the Associate Administrator, under the 
procedures set forth in Sec.  222.39(b) of this part, for continuation 
of the quiet zone. If the Quiet Zone Risk Index is reduced to the Risk 
Index With Horns, the quiet zone will be considered to have been 
established pursuant to Sec.  222.39(a)(3) of this part 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 Zones--Annual risk review. (1) FRA will annually 
calculate the Quiet Zone Risk Index for each Pre-Rule Quiet Zone and 
Pre-Rule Partial Quiet Zone that qualified for automatic approval 
pursuant to Sec. Sec.  222.41(a)(1)(ii), 222.41(a)(1)(iii), 
222.41(b)(1)(ii), and 222.41(b)(1)(iii) of this part. FRA will notify 
each public authority of the Quiet Zone Risk Index for the preceding 
calendar year. 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 Zones and Pre-Rule Partial Quiet Zones authorized 
under Sec. Sec.  222.41(a)(1)(ii) and 222.41(b)(1)(ii). (i) If a Pre-
Rule Quiet Zone or Pre-Rule Partial Quiet Zone originally qualified for 
automatic approval because the Quiet Zone Risk Index was at, or below, 
the Nationwide Significant Risk Threshold, the quiet zone may continue 
unchanged if the Quiet Zone Risk Index as last calculated by the 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)(1)(iii) or 222.41(b)(1)(iii) of this part.
    (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

[[Page 297]]

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 Zones and Pre-Rule Partial Quiet Zones authorized 
under Sec. Sec.  222.41(a)(1)(iii) and 222.41(b)(1)(iii). (i) If a Pre-
Rule Quiet Zone or Pre-Rule Partial Quiet Zone originally qualified for 
automatic approval because the Quiet Zone Risk Index was above the 
Nationwide Significant Risk Threshold, but below twice the Nationwide 
Significant Risk Threshold, and no relevant collisions had occurred 
within the five-year qualifying period, 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 the 
Risk Index With Horns. 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 the Risk Index With Horns, and receive 
approval from the Associate Administrator, under the procedures set 
forth in Sec.  222.39(b) of this part, 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) of 
this part 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. (1) The Associate Administrator may, 
at any time, review the status of any quiet zone.
    (2) If the Associate Administrator makes any of the following 
preliminary determinations, the Associate Administrator will provide 
written notice to the public authority, all railroads operating over 
public highway-rail grade crossings within the quiet zone, the highway 
or traffic control authority or law enforcement authority having control 
over vehicular traffic at the crossings within the quiet zone, the 
landowner having control over any private crossings within the quiet 
zone, the State agency responsible for grade crossing safety, and the 
State agency responsible for highway and road safety and will publish a 
notice of the determination in the Federal Register:
    (i) Safety systems and measures implemented within the quiet zone do 
not fully compensate for the absence of the

[[Page 298]]

locomotive horn due to a substantial increase in risk;
    (ii) Documentation relied upon to establish the quiet zone contains 
substantial errors that may have an adverse impact on public safety; or
    (iii) Significant risk with respect to loss of life or serious 
personal injury exists within the quiet zone.
    (3) 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 will 
provide a copy of his/her decision to the public authority and all 
parties listed in paragraph (c)(2) of this section. The public authority 
may appeal the Associate Administrator's decision in accordance with 
Sec.  222.57(c) of this part. 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) Termination by the public authority. (1) Any public authority 
that participated in the establishment of a quiet zone under the 
provisions of this part may, at any time, withdraw its quiet zone 
status.
    (2) A public authority may withdraw its quiet zone status by 
providing written notice of termination, by certified mail, return 
receipt requested, to all railroads operating the public highway-rail 
grade crossings within the quiet zone, the highway or traffic control 
authority or law enforcement authority having control over vehicular 
traffic at the crossings within the quiet zone, the landowner having 
control over any private crossings within the quiet zone, the State 
agency responsible for grade crossing safety, the State agency 
responsible for highway and road safety, and the Associate 
Administrator.
    (3)(i) If the quiet zone that is being withdrawn was part of a 
multi-jurisdictional quiet zone, the remaining quiet zones may remain in 
effect, provided the public authorities responsible for the remaining 
quiet zones provide statements to the Associate Administrator certifying 
that the Quiet Zone Risk Index for each remaining quiet zone is at, or 
below, the Nationwide Significant Risk Threshold or the Risk Index With 
Horns. These statements shall be provided, no later than six months 
after the date on which the notice of quiet zone termination was mailed, 
to all parties listed in paragraph (d)(2) of this section.
    (ii) If any remaining quiet zone has a Quiet Zone Risk Index in 
excess of the Nationwide Significant Risk Threshold and the Risk Index 
With Horns, the public authority responsible for the quiet zone shall 
submit a written commitment, to all parties listed in paragraph (d)(2) 
of this section, to reduce the Quiet Zone Risk Index to a level at or 
below the Nationwide Significant Risk Threshold or the Risk Index With 
Horns within three years. Included in the commitment statement shall be 
a discussion of the specific steps to be taken by the public authority 
to reduce the Quiet Zone Risk Index. This commitment statement shall be 
provided to all parties listed in paragraph (d)(2) of this section no 
later than six months after the date on which the notice of quiet zone 
termination was mailed.
    (iii) Failure to comply with paragraphs (d)(3)(i) and (d)(3)(ii) of 
this section shall result in the termination of the remaining quiet 
zone(s) six months after the date on which the notice of quiet zone 
termination was mailed by the withdrawing public authority in accordance 
with paragraph (d)(2) of this section.
    (iv) Failure to complete implementation of SSMs and/or ASMs to 
reduce the Quiet Zone Risk Index to a level at, or below, the Nationwide 
Significant Risk Index or the Risk Index With Horns, in accordance with 
the written commitment provided under paragraph (d)(3)(ii) of this 
section, shall result in the termination of quiet zone status three 
years after the date on which the written commitment was received by 
FRA.
    (e) Notification of termination. (1) 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 immediately provide written 
notification of the termination by certified mail, return receipt 
requested, to all railroads operating over public highway-rail grade 
crossings within the quiet zone, the highway or traffic control 
authority or

[[Page 299]]

law enforcement authority having control over vehicular traffic at the 
crossings within the quiet zone, the landowner having control over any 
private crossings within the quiet zone, the State agency responsible 
for grade crossing safety, the State agency responsible for highway and 
road safety, and the Associate Administrator.
    (2) Notwithstanding paragraph (e)(1) of this section, if a quiet 
zone is terminated under the provisions of this section, FRA shall also 
provide written notification to all parties listed in paragraph (e)(1) 
of this section.
    (f) Requirement to sound the locomotive horn. Upon receipt of 
notification of quiet zone termination pursuant to paragraph (e) of this 
section, 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.