Skip to main content
CityRuleLookup

Montgomery County, MD Public Conduct: Public Alcohol Use (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Regulation
COMCOR 49.00.01.01
Requires
DOT-approved block party road closure
Applies to
only the closed road segment
Adopting agency
Dept. of Transportation executive regulation

Summary

Montgomery County allows drinking alcohol on public roads only when the Department of Transportation has approved a neighborhood block-party road closure. COMCOR 49.00.01 grants that narrow permission and nothing broader for county streets and rights-of-way.

City-specific rules exist: Gaithersburg, and Rockville have their own public alcohol use rules that differ from Montgomery County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Many neighborhoods conduct traditional "block parties" at various times during the year and request from the Department of Transportation permission to close off county roadways for this purpose. Permission is granted to consume alcoholic beverages on those portions of Montgomery County public roads approved for closure by the Department of Transportation for neighborhood "block parties" during the time such closings are in effect.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-90: Montgomery County Code contains legislation effective through May 7, 2026 | Zoning Updated Effective: April 13, 2026 | COMCOR Regulations effective as of July 1, 2026).

Full Breakdown

Executive regulation COMCOR 49.00.01, adopted by the Department of Transportation, grants permission to consume alcoholic beverages only on the specific portions of Montgomery County public roads that DOT has approved for closure for a neighborhood block party, and only while that closure is in effect. The regulation exists because block parties turn a public roadway into a de facto private gathering space for the closure period. Outside an approved block-party closure, drinking on county roads and rights-of-way isn't authorized by this regulation, and open-container violations on Maryland roadways are separately handled under the Criminal Law Article.

Violations & Fines

Consuming alcohol on a county road without an approved block-party closure permit falls outside this permission; Montgomery County police and DOT enforce through the closure permit process and standard open-container/disorderly-conduct law.

Frequently Asked Questions

Can I drink alcohol on my street during a block party?
Only if Montgomery County's Department of Transportation formally approved that road segment's closure. COMCOR 49.00.01 permits consumption solely there, and only while the closure is in effect.
Does this mean I can drink anywhere on a public street?
No. The permission covers only the exact road portion DOT approved for closure, and only during the approved block-party time window, not general public streets or sidewalks.

Sources & Official References

Other rules in Montgomery County

All Montgomery County rules

Compare Montgomery County to another location·View the Maryland public conduct overview

Get notified when Public Alcohol Use in Montgomery County, MD changes

We'll email you the moment we detect a change in the code. No spam, unsubscribe anytime.

We'll never sell or share your email. One-click unsubscribe in every email.

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.

Public Alcohol Use in Cities Across Montgomery County