Following the end of the comment period for the Burbank-Glendale-Pasadena (Calif.) Airport Authority’s plan to impose a nighttime curfew on Bob Hope Airport, the authority plans soon to submit a formal application for the curfew to go forward. If Burbank’s proposal to impose a 10 p.m. to 7 a.m. curfew is enacted, this would be the nation’s first imposition of curfew restrictions on Stage 3 jets. According to the airport authority, a draft version of a Part 161 study released in March shows that the benefits of the curfew outweigh the costs. In a 73-page submission about the Burbank curfew, NBAA outlined its concerns, noting that it disagreed with this conclusion because the benefits are short-term while the costs are incurred during the operational life of the airport. NBAA also said the curfew would be unreasonable, arbitrary and highly discriminatory; would create an undue burden on interstate and foreign commerce; could compromise the safe and efficient use of navigable airspace by diverting up to 22,864 annual operations to other Los Angeles-area airports; would violate grant assurances; and would create an undue burden on the national air transportation system.