Rockville, MD Parking Rules: EV Charging (2026)
Key Facts
- R-2 (multi-family) EVSE-Installed
- 10% of parking spaces
- R-2 (multi-family) EV-Ready
- 10% of parking spaces
- R-2 (multi-family) EV-Capable
- 30% of parking spaces
- Reduction available
- 50% off with approved plan
- Governing provision
- Code § 5-162, IECC § C405.14
Summary
Rockville's Energy Conservation Code requires new R-2 multi-family buildings to make 10% of parking spaces fully EVSE-installed, another 10% EV-Ready, and 30% EV-Capable: the highest electric-vehicle infrastructure tier of any occupancy group in the code.
C405.14 Electric vehicle charging infrastructure. Parking facilities shall be provided with electric vehicle charging infrastructure in accordance with this section and Table C405.14. ... TABLE C405.14 ELECTRIC VEHICLE CHARGING INFRASTRUCTURE REQUIREMENTS OCCUPANCY GROUP EVSE INSTALLED EVSE READY EVSE CAPABLE ... Groups R-1, R-2, R-4 10% 10% 30%
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 17 Update 1).
Full Breakdown
The City of Rockville amended the 2021 IECC to add Section C405.14, requiring parking facilities citywide to provide electric vehicle charging infrastructure. Table C405.14 sets Groups R-1, R-2, and R-4 (including apartment buildings) at 10% EVSE-Installed spaces, 10% EV-Ready spaces, and 30% EV-Capable spaces: well above the 2%/8%/10% tier for commercial occupancies. The zoning ordinance folds this into site parking calculations at Sec. 25.8.2.3(b)(4), which requires 'the minimum number of electric vehicle parking spaces required under Chapter 5, Article 8' on every development. A developer may get a 50% reduction in the EV-Capable count for R-1/R-2/R-4 buildings if the Building Official approves a Long-Term EV Charging Management Plan.
Violations & Fines
Plans lacking the required EVSE-Installed, EV-Ready, and EV-Capable space counts are rejected at building-permit review, and the Building Official will not certify occupancy until the infrastructure is verified in the field.
Frequently Asked Questions
Does this apply to existing apartment buildings?
Can a developer reduce the required EV-Capable spaces?
Sources & Official References
Other rules in Rockville
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