# Business Occupations and Professions (GBO)

## Title 12. Plumbers

### Subtitle 5. Miscellaneous Provisions

#### Section 12-504

Each plumbing advertisement in the name of a person who engages in the business of providing plumbing services shall contain the license number and name of a master plumber or holder of a limited master plumber license whom the person employs and designates to direct and control the provision of plumbing services through the business of the person.

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Md. Code Ann., Bus. Occ. & Prof. (as displayed at mgaleg.maryland.gov, October 16, 2026)