NEC
NFPA 70 §Article 800
General requirements for communications systems (cable listing and marking)
- Publication
- NFPA 70
- Edition
- 2023
- Section
- §Article 800
What it requires
Specifies communications cable listing and marking (CM, CMG, CMR riser, CMP plenum) and separation from power conductors. Plenum spaces require a CMP-rated jacket, tested to NFPA 262. Communications circuits themselves are Article 805.