# Sec. 9-107.01. Wiring Methods and Materials; Article 310 — Conductors for General Wiring

Codified through Bill No. CB-018-2026, adopted May 12, 2026, effective July 24, 2026. Source: Municode, Supplement 2026 Update 2. Editorial notes and legislative history omitted.

## Sec. 9-107.01. Wiring Methods and Materials; Article 310 — Conductors for General Wiring

Prince George's County, Md., Code § 9-107.01 (2026)

(a) The following amendments, additions, and/or deletions are made to Article 310 of the National Electrical Code:

  (1) The following paragraph is added to Section 310.10, "Uses Permitted:" (C) Aluminum or copper-clad aluminum conductors. Aluminum or copper-clad aluminum conductors shall be permitted only for service and feeder use and shall not be smaller than #2 AWG.

  (2) The following exception is added to Section 310.10, "Uses Permitted:" Listed Cable assemblies #2 aluminum or copper-clad aluminum conductors AWG and larger installed in single-family and multifamily dwellings, having grounding conductors sized in accordance with Section 250.122, "Size of Equipment Grounding Conductors," shall be excluded from the requirements set forth in (a)(l), above.