Washington Code > Chapter 70A.550 Washington Code > Chapter 70A.550 – Wind energy facilities — Light pollution Current as of: 2023 | Check for updates | Other versions § 70A.550.010 Definitions § 70A.550.020 Aircraft detection lighting system — Installation of a light-mitigating technology system § 70A.550.030 Penalty — Enforcement — Rule-making authority Ask a business law question, get an answer ASAP!Thousands of highly rated, verified business lawyers.Click here to chat with a lawyer about your rights.