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Low Voltage Nation
News, permits, tools & projects — updated daily
Permit requirements, license guides, codes, and certifications by state.
1,559 posts
Permits & Licensing
Complete guide to fire alarm permit requirements in Travis County, Texas. Covers Fire Marshal construction permits, Sheriff alarm permits, Austin TCE compliance, and state licensing.
Jan 19, 2026
Permits & Licensing
Complete guide to structured cabling permit requirements in Bexar County, Texas. Covers San Antonio BuildSA permits, unincorporated area rules, state exemptions, and code compliance.
Jan 19, 2026
Permits & Licensing
Complete guide to access control permit requirements in Bexar County, Texas. Covers DPS licensing, Sheriff alarm permits, gated community rules, and San Antonio requirements.
Jan 19, 2026
Permits & Licensing
Complete guide to fire alarm permit requirements in Bexar County, Texas. Covers Sheriff alarm permits, Fire Marshal approval, San Antonio SAFD process, and state licensing requirements.
Jan 19, 2026
Permits & Licensing
Complete guide to structured cabling permit requirements in Tarrant County, Texas. Covers Fort Worth permits, state exemptions, code compliance, and application process.
Jan 19, 2026
Permits & Licensing
Complete guide to access control permit requirements in Tarrant County, Texas. Covers DPS licensing, Class B contractor requirements, and local alarm permits for Fort Worth and surrounding areas.
Jan 19, 2026
Permits & Licensing
Complete guide to fire alarm permit requirements in Tarrant County, Texas. Covers county vs. city jurisdiction, SFMO licensing, NICET requirements, and application process.
Jan 19, 2026
Permits & Licensing
Guide to structured cabling permit requirements in Dallas County, Texas. Learn when permits are needed, contractor registration rules, and how to navigate city vs. county jurisdiction.
Jan 19, 2026
Permits & Licensing
Dallas County access control follows Texas state exemptions for low voltage. DPS Class D or B licensing required. Commercial projects may need permits through DUAS.
Jan 19, 2026
Permits & Licensing
Dallas County requires fire alarm permits for unincorporated areas. Fire Marshal administers permits for commercial, public, and 4+ unit multifamily. Architect/engineer seal required.
Jan 19, 2026
Permits & Licensing
Harris County structured cabling follows Texas state exemptions. Low voltage communication circuits generally exempt. Verify jurisdiction—Houston has different requirements.
Jan 19, 2026
Permits & Licensing
Harris County requires access control permits for commercial installations. E-lock inspections verify emergency egress. State DPS Class D or B licensing mandatory.
Jan 19, 2026
Permits & Licensing
Austin has stricter requirements than other Texas cities. Work under 25V/50W exempt from building permits. Municipal override means permits may be required for low voltage.
Jan 19, 2026
Permits & Licensing
Austin access control has specific requirements. Under 25V/50W exempt from building permits. Fire door work requires AFD review. State DPS licensing mandatory.
Jan 19, 2026
Permits & Licensing
Austin requires fire alarm permits for all installations. Contractors need TDI-SFMO state licensing. 2021 IFC adopted with local amendments. KNOX boxes required for monitored systems.
Jan 19, 2026
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