CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER V—NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 501–599) > PART 552—PETITIONS FOR RULEMAKING, DEFECT, AND NONCOMPLIANCE ORDERS > SUBPART B—Petitions for Expedited Rulemaking To Establish Dynamic Automatic Suppression System Test Procedures for Federal Motor Vehicle Safety Standard No. 208, Occupant Crash Protection ( > 552.12—Definitions.

552.12—Definitions.

For purposes of this subpart, the following definitions apply:
(a) Dynamic automatic suppression system (DASS) means a portion of an air bag system that automatically controls whether or not the air bag deploys during a crash by:
(1) Sensing the location of an occupant, moving or still, in relation to the air bag;
(2) Interpreting the occupant characteristics and location information to determine whether or not the air bag should deploy; and
(3) Activating or suppressing the air bag system based on the interpretation of characteristics and occupant location information.
(b) Automatic suppression zone (ASZ) means a three-dimensional zone adjacent to the air bag cover, specified by the vehicle manufacturer, where air bag deployment will be suppressed by the DASS if a vehicle occupant enters the zone under specified conditions.
(c) Standard No. 208 means 49 CFR 571.208.