Madison stops (Wall Triana · County Line · Town Madison · most of Hwy 72 W) → use MADISON numbers only. Never quote Huntsville EMC sizes in Madison.
MADISON (Art. 9 · July 2026)
- Monument preferred. Pole signs only ≤1,000 ft of I-565.
- B-1: 20–40 sf / 6 ft · B-2: 40–100 sf / 10–12 ft
- B-3 / UC / M: 55–155 sf / 15 ft
- EMC / Digital: ONLY B-2 or B-3 · lot ≥1 acre · major-road frontage
- 350 ft setback from any residential lot line
- Static messages only · min 10-sec dwell · auto-dim (≤0.3 fc over ambient)
- One EMC per lot · must black-out on malfunction
HUNTSVILLE (Art. 72)
- EMC allowed on ground/monument/pylon in most commercial districts
- Prohibited in Research Park, RP Applications, RP West, Planned Industrial
- Electronic face ≤ 75% of total sign area
- Heights typically 10–35 ft by district · auto-dim required · no animation
Field rule
- Confirm city limits before quoting size or digital capability.
- When in doubt: Madison permit portal or Huntsville GIS.