Outdoor Lighting - Guidance and Use of State Funds

HB 452 requires the Maryland Green Building Council to update outdoor lighting guidelines by October 2026, focusing on reducing light pollution and setting a color temperature limit of 3,000K or lower for new fixtures. It prohibits state funds from being used for outdoor lighting on state buildings, parks, or trails unless fixtures meet specific efficiency standards, including using 3,000K or cooler light, minimizing upward light spill, and providing only necessary illumination. Exemptions include Department of Transportation projects, correctional facilities, and sports field lighting. The bill also creates a waiver process for special lighting needs and mandates a Department of Transportation review of highway lighting practices by September 2026.