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Apply for Civil Union License

Apply for Civil Union License

The Boulder County Recording Division - Online/phone services available only (no in-person services)

  • To limit the overall number of individuals in our Boulder office for our elections and motor vehicle divisions, the recording division will remain closed to the public.
  • Staff will respond to email and phone inquires and can assist with recording needs that can happen online, such as recording a document, searching records, etc.
  • Marriage licenses are being issued via online video appointment. See details.
  • Contact: 303-413-7770 or

Apply in person

Apply for a civil union license in person by 4:15 p.m. at a county clerk’s office (application process takes approximately 20 minutes, no appointment needed):

  • Boulder: 1750 33rd Street
  • Longmont: 529 Coffman Street
  • Lafayette: 1376 Miners Drive

Get started by submitting your civil union license application information online. View our guide for help filing the application online.


Both applicants must provide the following to obtain a civil union license:

  • ID (Please bring one of the following):
    • Current U.S. driver’s license
      • Colorado licenses with the black strip that reads, “Not valid for federal identification…” are not accepted
    • Passport
    • Original or certified copy of birth certificate
  • Social Security number (if a foreign applicant doesn’t have a Social Security number they must complete a Sworn Statement Affidavit in our office)
  • $30 fee for the license (cash, check and credit card accepted; minimal fee for using a credit card of $0.75 + 2.26% of the total)

If an applicant cannot appear in person, the other applicant must apply in person and provide the following:

Divorced/Dissolved Applicants

If either applicant has previously been married or has previously been party to a civil union, provide the following in addition to the items listed above:

  • Name of previous spouse or partner
  • Date of divorce or dissolution (month/day/year)
  • Place of divorce or dissolution (city and state)
  • Type of court for the divorce or dissolution

Widowed Applicants

If either applicant is widowed, provide the following in addition to the items detailed above:

  • Date of death (month/day/year)
  • Place of death (city and state)

Age Requirements

Applicants for a civil union license must be 18 years of age or older. If 18 years of age or older and under legal guardianship, applicants require consent from their guardians.

View the legal guardian consent form.


Civil unions are prohibited if an applicant is already married or in another civil union. Unions between the following are also prohibited:

  • Ancestor and descendant
  • Siblings
  • Uncle and niece or uncle and nephew
  • Aunt and nephew or aunt and niece

Civil Union License Details

  • Civil union licenses must be used within 35 days from the date of issue, anywhere in Colorado
  • Civil union licenses may be obtained in any county, regardless of where the ceremony will take place in Colorado
  • Witnesses are not required
  • Blood tests are not required


A civil union ceremony may be performed by the following:

  • The couple themselves
  • Judge or court magistrate
  • Religious or tribal official authorized to perform a ceremony

If the couple chooses to perform the ceremony, they will complete the lower portion of the civil union license.

Find judges and magistrates who perform ceremonies in Boulder County.

Recording a Civil Union License

Licenses may be submitted by mail or in person at the Recording Division office for recording. If you bring the license in person it will be recorded at that time and returned to you. If you mail the license, it will be returned within two weeks from the time we received it. To record the license:

  • Complete the civil union certificate’ portion of the license
  • Signatures of witnesses are not required
  • Bring in person to 1750 33rd St., Suite 201, Boulder, CO or 529 Coffman St. #100, Longmont, CO
  • Mail the license to 1750 33rd St., Suite 201, Boulder, CO 80301

Civil Union License Details

  • A civil union license must be used within 35 days including the date of issue
  • A civil union license may only be used in the state of Colorado

Contact Us

If a civil union license is not returned to the parties one month after the ceremony, contact the office. The Recording Division may not have received the license from the officiating party.

Contact Us

Recording Division

303-413-7775 (Fax)
**New as of Jan 4, 2021**
7:30 a.m. – 5:00 p.m. Mon-Thurs.
CLOSED Fridays


Boulder: 1750 33rd Street
Map & Directions

Longmont: 529 Coffman Street
Map & Directions

Lafayette: 1376 Miners Drive
Map & Directions

Mailing Address

1750 33rd Street, Suite 201
Boulder, CO 80301