7 county-level rules, plus city-specific rules for 3 cities in Montgomery County, Maryland.
Verified from official government sources
Montgomery County Code §31-14 prohibits parking RVs and utility trailers on public roadways except for up to 18 hours while actively loading/unloading or up to 48 hours for mechanical failure. In residential zones (R-200, R-90, R-60, R-40), one RV may be parked on a lot, but may only be used for dwelling purposes up to 3 days per month.
Montgomery County regulates driveway dimensions, materials, and parking surfaces under Ch 59 Zoning Ordinance and DPS driveway permit requirements. Vehicles must park on improved surfaces only. Front-yard parking on grass or dirt is prohibited in residential zones. Driveways require a right-of-way permit from MCDOT.
Montgomery County Code §31-14 prohibits parking heavy commercial vehicles (over 10,000 lbs, 21+ ft, 8+ ft high) on public residential roadways. One light commercial vehicle (under 10,000 lbs, under 21 ft) may be parked on a residential lot under ZTA 23-05.
Montgomery County Code §31-16 prohibits parking on public streets for more than 24 hours, except adjacent to the owner's residence or business. Street parking rules enforced by Montgomery County Police.
Montgomery County restricts overnight parking on certain residential streets through posted signage and HOA covenants. County roads do not have a blanket overnight parking ban, but many residential streets prohibit parking between 2 AM and 6 AM. Commercial vehicles over 10,000 lbs are banned from residential streets overnight.
Montgomery County actively promotes EV infrastructure under Bill 40-21 requiring EV-ready parking in new construction. Residential charger installation requires a DPS electrical permit. The county offers rebates through its Green Bank program. MD law prohibits HOAs from blocking EV charger installation.
Abandoned vehicles in Montgomery County are subject to state and county law. MD Transportation Code §25-201+ defines abandonment; county can tag and tow vehicles parked on public property beyond the 24-hour limit (§31-16) or found inoperable on private property.
3 cities in Montgomery County have their own parking rules rules. Each link goes to that city's dedicated page with code citations.
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Montgomery County Ordinance Hub →