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Broomfield, CO Public Conduct: Public Marijuana Use (2026)

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

Key Facts

Governing section
9-19-020(B), Chapter 9-19
Max fine (adult)
$100.00 under Section 9-19-040(A)
Private residence
Only place consumption is exempt
Under-21 possession limit
One ounce or less without medical card
Enforcement track
Administrative process, Chapter 1-13
Juvenile violators
Mandatory court appearance, not a fine

Summary

Broomfield's municipal code makes it unlawful to consume marijuana openly and publicly anywhere the general public has access, including streets, sidewalks, parking lots, parks, playgrounds and even a front yard. Consumption is only lawful inside a private residence. Separately, anyone under 21 may not possess or use an ounce or less of marijuana at all, absent a registered medical card.

(B)It shall be unlawful for any person to engage in or attempt to engage in the open and public consumption of marijuana as defined in section 9-19-010 above. Consumption shall be open and public, for the purposes of this section if upon any street, alley, highway, sidewalk, parking lot, park, playground, city-owned property, front yard, or place to which the general public has access and a right to resort for business, entertainment or other lawful purpose. Consumption shall not be open and public if within a private residence.

Full Breakdown

Section 9-19-020(B) of the Broomfield Municipal Code defines open and public consumption broadly: any street, alley, highway, sidewalk, parking lot, park, playground, city-owned property, front yard, or any other place the general public has a right to resort to for business, entertainment or another lawful purpose counts as public. The only carve-out is consumption inside a private residence. The ordinance sits in Chapter 9-19, Marijuana and Drug Paraphernalia, which also bars anyone under 21 from possessing, consuming or using an ounce or less of marijuana under subsection (A), unless that person holds a valid medical marijuana registry card.

Marijuana is defined in Section 9-19-010 to include all parts of the cannabis plant, its resin, seeds and any marijuana concentrate, while excluding industrial hemp and sterilized, non-germinating seed. Enforcement runs through the Broomfield Police Department. Section 9-19-040(A) sets the penalty for an adult violation of 9-19-020 at a fine capped at $100.00, processed through the administrative civil penalty track in Chapter 1-13 rather than municipal court. Chapter 1-13, added by Ordinance No. 2271 in 2025, lets an enforcement officer issue a notice of violation with a hearing and appeal option instead of criminal prosecution.

A juvenile who violates 9-19-020, however, is carved out of that administrative track entirely under Section 9-19-040(B) and must make a mandatory court appearance. The chapter traces to its 1979 origin under Ordinance 343 and was most recently amended by Ordinance 2003 in 2014.

Violations & Fines

An adult caught consuming marijuana in public faces an administrative citation under Chapter 1-13 with a fine capped at $100.00 under Section 9-19-040(A), separate from any state marijuana-in-public ticket. A person under 21 who possesses or uses an ounce or less without a valid medical registry card violates 9-19-020(A) on top of any consumption charge. Juveniles bypass the administrative fine track and instead face a mandatory court appearance under 9-19-040(B).

Frequently Asked Questions

Can I smoke marijuana on my own front porch in Broomfield?
No. Section 9-19-020(B) lists a front yard among the places counted as open and public consumption, along with streets, sidewalks, parking lots, parks and playgrounds. The only place the ordinance exempts is inside a private residence itself, so a porch, yard or driveway still exposes you to a citation even on property you own.
What is the fine for public marijuana use in Broomfield?
Section 9-19-040(A) caps the fine at $100.00 for an adult violation of Section 9-19-020, handled through the Chapter 1-13 administrative civil penalty process rather than a criminal case, giving the responsible party a right to a hearing and appeal before the fine is finalized.
Does Broomfield's ban apply to someone with a medical marijuana card?
The under-21 possession ban in Section 9-19-020(A) exempts a current, lawful registered medical marijuana patient from the possession restriction, but the separate open-and-public-consumption ban in subsection (B) applies to everyone regardless of age or medical registry status.

Sources & Official References

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