- (a) Observation and speaking panels shall be mounted in plate or masonry walls where shown on plans, and they shall be designed to prevent the passage of contraband.
- (b) Observation and speaking panels shall be made either of polished stainless steel, chromium plated steel, brass, or aluminum.
- (c) Glass in observation panels shall be bullet‑proof and at least 7/8 inch thick.
History Note: Authority G.S. 153A‑220; 153A‑221;
Eff. June 1, 1990;
Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. January 5, 2016.