08-037-VEH: OOSC, Partie II, Article 3. Systèmes d'échappement, b. Fuites d'échappement sur les autobus

Date d’inscription	15 août 2008
Numéro de l’enjeu	08-037-VEH
Nom	Timothy P. Davis
Organisme	Massachusetts Department of Public Utilities
Adresse	1 South Station - 2nd FloorBoston, MA, 02110United StatesVoir sur la carte (s’ouvre dans un nouvel onglet)
Téléphone	(617) 305-3773
Télécopieur	(617) 478-2598
Courriel	[email protected]
Comité	Comité des véhicules
État	Fermé
Résumé de l’enjeu	Les North American Standard Out-of-Service Criteria pour les systèmes d'échappement doivent être corrigés. Le point 3.a. de l'OOSC autorise les fuites d'échappement des moteurs diesel sous le poste de conduite. Le point 3.b. autorise les fuites d'échappement des moteurs diesel et à essence à moins de 38 cm (15 pouces) de l'arrière d'un autobus. Cette disposition est maintenant retirée du titre 49 du CFR, section 393.83.
Justification ou besoin	L'OOSC ne doit pas être en conflit avec la réglementation fédérale.
Demande d’action	La section relative au système d'échappement devrait être réécrite afin de refléter le libellé actuel de la réglementation. Cette occasion pourrait être saisie pour y intégrer également la réglementation canadienne.
Mesures prises par le comité	This issue was sent to the Vehicle Committee (VC) by the Passenger Carrier Committee (PCC) based on revisions previously approved by the PCC. The PCC had already voted to a change to add a diesel exhaust system leak condition to gasoline exhaust leaks to the OOS in 3.b. by removing ?or diesel engine? from the last sentence in the paragraph. The VC was asked to support the change and to consider similar revisions for other vehicles. The VC considered the fact that while there is a much lower level of CO in diesel exhaust, there are still enough toxic substances that a driver who was exposed to the exhaust fumes for any extended period was likely to become impaired due to illness. It was also discussed that this type of leak had been removed from the OOSC approximately 10 years ago based on the fact that a person will not die from CO fumes. The PCC provided information in regard to the dangers of CO fumes and after some discussion, the VC passed a motion to revise the section to address an exhaust leak that is combined with an entry point for all vehicles. The revised wording shown below incorporates the changes approved by the PCC and VC. Revised Wording: a.Any exhaust system leaking at a point forward of or directly below the driver/sleeper compartment and the vehicle has a condition that permits entry of exhaust fumes into the driver/sleeper compartment. (393.83(g)) b. Any bus exhaust system leaking or discharging under the chassis more than 6 inches (15.24cm) forward of the rear most part of the bus when powered by a gasoline engine, or more than 15 inches (38.1cm) forward of the rear most part of the bus when powered by other than a gasoline engine. (393.83(d))

Date d’inscription

15 août 2008

Numéro de l’enjeu

08-037-VEH

Nom

Timothy P. Davis

Organisme

Massachusetts Department of Public Utilities

Adresse

1 South Station - 2nd FloorBoston, MA, 02110United StatesVoir sur la carte

Téléphone

(617) 305-3773

Télécopieur

(617) 478-2598

Courriel

[email protected]

Comité

Comité des véhicules

État

Fermé

Résumé de l’enjeu

Les North American Standard Out-of-Service Criteria pour les systèmes d'échappement doivent être corrigés. Le point 3.a. de l'OOSC autorise les fuites d'échappement des moteurs diesel sous le poste de conduite. Le point 3.b. autorise les fuites d'échappement des moteurs diesel et à essence à moins de 38 cm (15 pouces) de l'arrière d'un autobus. Cette disposition est maintenant retirée du titre 49 du CFR, section 393.83.

Justification ou besoin

L'OOSC ne doit pas être en conflit avec la réglementation fédérale.

Demande d’action

La section relative au système d'échappement devrait être réécrite afin de refléter le libellé actuel de la réglementation. Cette occasion pourrait être saisie pour y intégrer également la réglementation canadienne.

Mesures prises par le comité

This issue was sent to the Vehicle Committee (VC) by the Passenger Carrier Committee (PCC) based on revisions previously approved by the PCC. The PCC had already voted to a change to add a diesel exhaust system leak condition to gasoline exhaust leaks to the OOS in 3.b. by removing ?or diesel engine? from the last sentence in the paragraph. The VC was asked to support the change and to consider similar revisions for other vehicles. The VC considered the fact that while there is a much lower level of CO in diesel exhaust, there are still enough toxic substances that a driver who was exposed to the exhaust fumes for any extended period was likely to become impaired due to illness. It was also discussed that this type of leak had been removed from the OOSC approximately 10 years ago based on the fact that a person will not die from CO fumes. The PCC provided information in regard to the dangers of CO fumes and after some discussion, the VC passed a motion to revise the section to address an exhaust leak that is combined with an entry point for all vehicles. The revised wording shown below incorporates the changes approved by the PCC and VC.

Revised Wording: a.Any exhaust system leaking at a point forward of or directly below the driver/sleeper compartment and the vehicle has a condition that permits entry of exhaust fumes into the driver/sleeper compartment. (393.83(g)) b. Any bus exhaust system leaking or discharging under the chassis more than 6 inches (15.24cm) forward of the rear most part of the bus when powered by a gasoline engine, or more than 15 inches (38.1cm) forward of the rear most part of the bus when powered by other than a gasoline engine. (393.83(d))