This appendix applies to Tier I alternative passenger trainsets, as described below. While the appendix may refer to specific units of rail equipment in a trainset, the alternative requirements in this appendix apply only to a trainset as a whole.

This appendix specifies alternatives to the crashworthiness and occupant protection performance requirements for Tier I passenger equipment in §§ 238.203, Static end strength; 238.205, Anti-climbing mechanism; 238.207, Link between coupling mechanism and car body; 238.209(a), Forward end structure of locomotives, including cab cars and MU locomotives; 238.211, Collision posts; 238.213, Corner posts; and 238.219, Truck-to-carbody attachment. To maintain their integrity, these requirements apply as a whole. They also apply in addition to the requirements of §§ 238.209(b); 238.215, Rollover strength; 238.217, Side structure; and 238.233, Interior fittings and surfaces; and they apply with APTA standards for occupant protection, as specified in this appendix.

For ease of comparison with the Tier I requirements in subpart C of this part, this appendix is arranged in order by the Tier I section referenced.

Use of this appendix to demonstrate alternative crashworthiness and occupant protection performance for Tier I passenger equipment is subject to FRA review and approval under § 238.201.

(a) Instead of the requirements of § 238.203, the units of a Tier I alternative passenger trainset may demonstrate their occupied volume integrity by complying with both the quasi-static compression load and dynamic collision requirements in §§ 238.703(b) and 238.705, respectively.

(b) Colliding equipment. Instead of the requirements of § 238.205, the units of a Tier I alternative passenger trainset may demonstrate their ability to resist vertical climbing and override at each colliding interface during a train-to-train collision by complying with the dynamic collision requirements in § 238.707(a).

(c) Connected equipment. Instead of the requirements of §§ 238.205 and 238.207, when connected, the units of a Tier I alternative passenger trainset may demonstrate their ability to resist vertical climbing and override by complying with the dynamic collision requirements in § 238.707(b).

(d) Instead of the requirements of § 238.209(a), each cab end of a Tier I alternative passenger trainset may demonstrate its ability to inhibit fluid entry and provide other penetration resistance by complying with the requirements in § 238.709.

(e) Each cab end of a Tier I alternative passenger trainset is subject to the requirements of appendix F to this part to demonstrate cab end structure integrity. For those cab ends without identifiable corner or collision posts, the requirements of appendix F to this part apply to the end structure at the specified locations, regardless of whether the structure at the specified locations is a post.

(f) Instead of the applicable requirements of §§ 238.211 and 238.213, the units of a Tier I alternative trainset may demonstrate end structure integrity for other than a cab end by complying with the requirements in § 238.713(b) and (c).

(g) A Tier I alternative passenger trainset is subject to the requirements of §§ 238.215 and 238.217 to demonstrate roof and side structure integrity.

(h) Instead of the requirements of § 238.219, the units of a Tier I alternative passenger trainset may demonstrate their truck-to-carbody attachment integrity by complying with the requirements in § 238.717 (b) through (e).

(i)(1) A Tier I alternative passenger trainset is subject to the interior fixture requirements in § 238.233. Interior fixtures must also comply with APTA PR-CS-S-006-98, Rev. 1, “Standard for Attachment Strength of Interior Fittings for Passenger Railroad Equipment,” Authorized September 28, 2005, and those portions of APTA PR-CS-S-034-99, Rev. 2, “Standard for the Design and Construction of Passenger Railroad Rolling Stock,” Authorized June 11, 2006, relating to interior fixtures.

(2) The standards required in this paragraph (i) are incorporated by reference into this paragraph with the approval of the Director of the Federal Register under 5 U.S.C. 552(a) and 1 CFR part 51. All approved material is available for inspection at Federal Railroad Administration, Docket Clerk, 1200 New Jersey Avenue SE, Washington, DC and available from the American Public Transportation Association, 1666 K Street NW, Washington, DC 20006, www.aptastandards.com. It is also available for inspection at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030 or go to www.archives.gov/federal-register/cfr/ibr-locations.html.

(i) APTA PR-CS-S-006-98, Rev. 1, “Standard for Attachment Strength of Interior Fittings for Passenger Railroad Equipment,” Authorized September 28, 2005.

(ii) APTA PR-CS-S-034-99, Rev. 2, “Standard for the Design and Construction of Passenger Railroad Rolling Stock,” Authorized June 11, 2006.

(j) Passenger seating. (1) Passenger seating in a Tier I alternative passenger trainset is subject to the requirements for seats in § 238.233 and must also comply with APTA PR-CS-S-016-99, Rev. 2, “Standard for Passenger Seats in Passenger Rail Cars,” Authorized October 3, 2010, with the exception of Section 6, “Seat durability testing.”

(2) APTA PR-CS-S-016-99, Rev. 2, “Standard for Passenger Seats in Passenger Rail Cars,” Authorized October 3, 2010, is incorporated by reference into this paragraph (j) with the approval of the Director of the Federal Register under 5 U.S.C. 552(a) and 1 CFR part 51. All approved material is available for inspection at Federal Railroad Administration, Docket Clerk, 1200 New Jersey Avenue SE, Washington, DC and is available from the American Public Transportation Association, 1666 K Street NW, Washington, DC 20006, www.aptastandards.com. It is also available for inspection at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030 or go to www.archives.gov/federal-register/cfr/ibr-locations.html.

(k) Crew seating. Each seat provided for an employee regularly assigned to occupy the cab of a Tier I alternative passenger trainset, and any floor-mounted seat in the cab, must comply with § 238.233(e), (f), and (g).