StacksVerified U.S. regulatory reference

14 CFR §25.1395

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
No position light intensity may exceed the applicable values in the following table, except as provided in § 25.1389(b)(3).
  1. (a)Area A includes all directions in the adjacent dihedral angle that pass through the light source and intersect the common boundary plane at more than 10 degrees but less than 20 degrees; and
  2. (b)Area B includes all directions in the adjacent dihedral angle that pass through the light source and intersect the common boundary plane at more than 20 degrees.