Reciprocal Licensing - Plumbing
How to Apply for a Reciprocal License
If you hold a Master or Journeyman level license you may be eligible for reciprocity. To qualify for any type of reciprocal license, your license must have been obtained by examination.
| Jurisdiction | Master Plumber/Gasfitter | Journeyman Plumber/Gasfitter | Master Natural Gasfitter | Journeyman Natural Gasfitter |
|---|---|---|---|---|
| WSSC | Yes | Yes | Yes | Yes |
| Baltimore County | Yes | Yes | Yes | Yes |
| Washington DC | Yes | Yes | No | No |
| Virginia | Yes* | No | No | No |
| Delaware | Yes | No | No | No |
* You must hold both a Master Plumber and Master Gasfitter license to qualify in Virginia.
Documents needed before your application can be approved
Master or Journeyman Plumber/Gas Fitter license
- Letter of Good Standing (Verification of Licensure or Certificate of Licensure Status) from Baltimore County, the Washington Suburban Sanitary Commission (WSSC), Washington DC, Virginia, or Delaware.
- Backflow Certification - You must have completed a 32-hour backflow instruction course ( or 8-hour recertification course) this is ASSE or TREEO Certified.
- Copy of Photo ID or driver’s license
- Master license applicants only- If you want your license to be issued as Insured to Work (eligible to pull permits and enter into contracts, you may NOT do either if your license is issued as Not Insured to Work) you must submit a Certificate of Liability Insurance. The Certificate must:
- Show at least $300,000 in General Liability Coverage and $100,000 in Property Damage Coverage
- List your name on the Certificate, in addition to the name of the company
- List the MD State Board of Plumbing as the Certificate Holder. Our address is 100 S. Charles Street, Tower 1, Baltimore, MD 21201
Master or Journeyman Natural Gas Fitter license
- Letter of Good Standing from Baltimore County or the Washington Suburban Sanitary Commission (WSSC)
- Copy of Photo ID or driver’s license
- Master license applicants only- If you want your license to be issued as Insured to Work (eligible to pull permits and enter into contracts, you may NOT do either if your license is issued as Not Insured to Work) you must submit a Certificate of Liability Insurance. The Certificate must:
- Show at least $300,000 in General Liability Coverage and $100,000 in Property Damage Coverage
- List your name on the Certificate, in addition to the name of the company
- List the MD State Board of Plumbing as the Certificate Holder. Our address is 100 S. Charles Street, Tower 1, Baltimore, MD 21201
Please email the required documents to [email protected]. We recommend that you do not apply for the license unless you have all of the required documents. We can hold your application for 30 days to allow you to send us your documents.
Apply for either a Reciprocal Plumber/Gasfitter license or Natural Gasfitter license
If you are licensed with Baltimore County or WSSC, please select “In State Reciprocity” on the application page.
If you are licensed in Washington DC, Virginia or Delaware please select “Out of State Reciprocity” on the application page.
- Apply for a Reciprocal Plumber/Gasfitter License
- Apply for a Reciprocal Natural Gasfitter License
If you receive a message that you have a pending request or that you have already applied for a reciprocal license it is because you were licensed with the Board in the past. Please email the required documents to us for review. Please send your email to [email protected] and in the subject line write “Reciprocal License Application”
E-mail your supporting documentation to [email protected].