StacksVerified U.S. regulatory reference

47 CFR §17.53

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The lighting equipment, color or filters, and shade of paint referred to in the specifications are further defined in the following government and/or Army-Navy aeronautical specifications, bulletins, and drawings (lamps are referred to by standard numbers):