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Supplemental notice of proposed rulemaking (SNPRM).

The Federal Aviation Administration proposes to require that all passenger and flight attendant seats in transport category airplanes used in part 121 passenger-carrying operations meet improved crashworthiness standards. This proposed rule is necessary to provide an increased level of safety for part 121 operations. The intended effect of this proposed rulemaking is to increase passenger protection and survivability in impact-survivable accidents.

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