Interpretation ID: 9945
Executive Director
New York State Bus Distributors Association
102 Grace Street
Penn Yan, NY 14527
Dear Mr. Kreutziger:
This responds to your fax of May 4, 1994, requesting information on a May 4, 1994, final rule (59 FR 22997) delaying the effective date of one section of the November 2, 1992, final rule amending Standard No. 217, Bus Emergency Exits and Window Retention and Release (57 FR 49413). Your letter enclosed a bulletin from Carpenter Manufacturing, Inc. concerning "options" which can be deleted because of the delay of effective date. Your fax notes that New York state regulations exceed the minimum requirements of Standard No. 217 and requested any information we can provide on how the delay of effective date affects buses in the State of New York.
The November 2, 1992, amendment to Standard No. 217 set requirements for the provision of emergency exits based upon the seating capacity of the school bus (S5.2), set performance requirements for emergency exit window and emergency roof exit release (S5.3), revised the extension requirements for side doors and set extension requirements for emergency roof exits (S5.4), and revised the identification requirements (S5.5). The May 4, 1994, delay of effective date affects only the amendments to S5.2.
Provision of Emergency Exits (S5.2)
The November 2, 1992, final rule revised S5.2.3 to specify the number and type of exits required on school buses. As amended, S5.2.3 states, in part:
The area in square centimeters of the unobstructed openings for emergency exit shall collectively amount to at least 432 times the number of designated seating positions in the bus. The amount of emergency exit area credited to an emergency exit is based on the daylight opening of the exit opening.
The section also specifies the type of emergency exits which must be installed to meet this requirement. All school buses are
required to have either a rear emergency exit door or a side emergency exit door and a rear push-out window. These are the same exits required by S5.2.3.1 of Standard No. 217 before the recent amendments. The November 1992 rule amended S5.2.3.1 by specifying additional exits to meet the new minimum area requirement of S5.2.3. If, after deducting the daylight opening of the front service door and the required exit(s), additional exits are needed to meet the minimum area requirement of S5.2.3, any remaining exit area must be provided by installing additional exits in the following order: (1) a side emergency exit door, (2) an emergency roof exit, and (3) any combination of emergency exit doors, emergency roof exits, and emergency exit windows.
The May 4, 1994 final rule delayed the effective date of the amendment of S5.2.3.1 only. The effect of the delay is that, until September 1, 1994, manufacturers may comply with the requirements of Standard No. 217 by installing either a rear emergency exit door, or a side emergency exit door and a rear push-out window.
Your letter notes that New York regulations exceed Standard No. 217 in that they require additional exits. Section 103(d) of the National Traffic and Motor Vehicle Safety Act (the Safety Act; 15 U.S.C. 1392(d)) provides that:
Whenever a Federal motor vehicle safety standard ... is in effect, no State or political subdivision of a State shall have any authority either to establish, or to continue in effect, with respect to any motor vehicle or item of motor vehicle equipment any safety standard applicable to the same aspect of performance of such vehicle or item of equipment which is not identical to the Federal standard. Nothing in this section shall be construed to prevent ... any State or political subdivision thereof from establishing a safety requirement applicable to motor vehicles or motor vehicle equipment procured for its own use if such requirement imposes a higher standard than that required to comply with the otherwise applicable Federal standard.
Section 103(d) preempts state requirements for school buses covering the same aspect of performance as an applicable Federal motor vehicle safety standard that are different from the applicable standard except to the extent that the requirements impose a higher level of performance and apply only to vehicles procured for the State's use. A state law requiring exits in addition to those required by Standard No. 217 would be preempted under '103(d) to the extent that the law requires all school buses manufactured for use in the state to comply with the law. The law would not be preempted to the extent that it applies to public school buses. Any exits required by New York regulations on public school buses which exceed the requirements of Standard No. 217 would be considered voluntarily installed for purposes of federal law.
Emergency Exit Release (S5.3)
The November 2, 1992, final rule added performance requirements for the release mechanisms for emergency exit windows and emergency roof exits on school buses. These requirements apply both to required exits and to voluntarily installed exits. Thus, if New York requires either emergency exit windows or emergency roof exits, the manufacturer must certify that the release mechanisms comply with the requirements of S5.3. The effective date for the amendments to S5.3 was not extended by the May 4, 1994, final rule.
Emergency Exit Extension (S5.4)
The November 2, 1992, final rule revised the extension requirements for side emergency exit doors on school buses and set extension requirements for emergency roof exits on school buses. These requirements apply both to required exits and to voluntarily installed exits. Thus, if New York requires either side emergency exit doors or emergency roof exits, the manufacturer must certify that the vehicle complies with the new extension requirements. The effective date for the amendments to S5.4 was not extended by the May 4, 1994, final rule.
I note that the bulletin enclosed with your letter implies that, due to the delay of the effective date of the November 2, 1992, final rule, flip-up seats are not needed to meet the new requirements of S5.4. This information appears to be incorrect, since the May 4, 1994, final rule did not delay the effective date of S5.4. Compliance with the new requirements of S5.4 might entail the installation of flip-up seats. Under the new requirements, side emergency exit doors are required to provide an opening at least 114 centimeters high and 61 centimeters wide. In addition, an aisle 30 centimeters wide (referenced to the rear edge of the door) must be provided from the longitudinal centerline of the bus to the exit. A seat bottom is allowed within this aisle if it flips up when not in use such that it no longer is within the aisle. Finally, no portion of a seat or restraining barrier may block access to the latch. Thus, if New York requires side emergency exit doors, flip-up seats adjacent to those exits might have to be used to enable the bus to meet these requirements. For example, a flip-up seat might be needed to meet the requirement that the aisle for a side exit must be at least 30 centimeters wide.
Emergency Exit Identification (S5.5)
Finally, the November 2, 1992, final rule revised the identification requirements (S5.5). The effective date for the amendments to S5.5 was not extended by the May 4, 1994, final rule.
As revised, each required emergency exit is required to be marked with the words "Emergency Door" or "Emergency Exit." For emergency exit doors, the location of this marking was not changed. For emergency window exits and emergency roof exits, location requirements were added. In addition, each required emergency exit must be outlined with retroreflective tape. The identification requirements do not apply to voluntarily installed emergency exits (i.e., exits in excess of those required by S5.2.3).
Please note that there was a discrepancy concerning the size of the retroreflective tape caused by the metric conversion in the November 2, 1992, final rule. In a July 7, 1993, letter to Mr. Thomas D. Turner of the Blue Bird Body Company NHTSA stated that it would issue a correction notice that would specify a minimum size of 2.5 cm for the tape. Until the correction is issued, NHTSA will not take enforcement measures regarding tape size against a manufacturer who uses 1 inch wide retroreflective tape.
I have enclosed a copy of the May 4, 1994, final rule for your use. I hope you find this information helpful. If you have any other questions, please contact Mary Versailles of my staff at this address or by phone at (202) 366-2992.
Sincerely,
John Womack Acting Chief Counsel
cc: Mr. Todd Bontrager Asst. Vice President of Sales School Bus Division Carpenter Manufacturing, Inc. Mitchell, IN 47446 Enclosure
ref:217 d:5/18/95