Montgomery County, MD Landscaping Rules: Composting (2026)
Key Facts
- Governing law
- County Code § 48-17
- Rodentproofing
- Required unless pile is leaves/dirt only
- Enforcing agency
- Dept. of Environmental Protection
- Max penalty
- $1,000 fine, Class A violation
- Applies
- Countywide, incl. municipalities
Summary
Montgomery County requires backyard compost piles used to dispose of garbage to be rodentproofed; piles made entirely of leaves and dirt are exempt from that requirement under County Code Chapter 48.
The use of compost piles for the disposal of garbage is permitted only when the pile is completely rodentproofed. Compost piles consisting entirely of leaves and dirt do not require rodentproofing. (1981 L.M.C., ch. 37, § 1.)
Sec. 48-17B. Strategic Plan to Advance Composting, Compost Use and Food Waste Diversion in Montgomery County.
(a) Legislative findings. The County Council finds that:
(1) the County’s general goal of solid waste management establishes waste reduction as the most preferred management technique, followed by reuse, composting and recycling, then incineration with energy recovery, and, least preferred, landfilling;
(2) food waste represents a significant percentage of the County’s solid waste stream;
(3) educating food producers can reduce the generation of excess food that would enter the solid waste stream;
(4) giving food that would otherwise be wasted to organizations that serve people in need is a means to reuse excess food;
(5) composting, a means promoting the biological decomposition of organic material such as food waste into a stable, humus-like product, is a first step in the recycling of food waste;
(6) the use of compost has been demonstrated to benefit soil health by:
(A) suppressing plant diseases and pests;
(B) reducing or eliminating the need for chemical fertilizers;
(C) promoting higher yields of agricultural crops; and
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
County Code Section 48-17 permits compost piles for garbage disposal only when the pile is completely rodentproofed; piles made entirely of leaves and dirt don't need rodentproofing. The Director of Environmental Protection administers Chapter 48 and can waive requirements for hardship, appealable to the County Board of Appeals. The rule applies countywide except on federal reservations and Washington Suburban Sanitary Commission facilities; check your municipality's own code if you live in Rockville, Gaithersburg, or Takoma Park, which run separate solid-waste rules.
Violations & Fines
Violating Chapter 48's compost rodentproofing rule is a Class A violation: up to $1,000 criminal fine or a $500 civil penalty ($750 for a repeat offense), with each day a separate offense.
Frequently Asked Questions
Do I need a permit to compost at home in Montgomery County?
What counts as rodentproofed?
Does this rule apply in Rockville or Gaithersburg?
Sources & Official References
Other rules in Montgomery County
Compare Montgomery County to another location·View the Maryland landscaping rules overview
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