The County Book, Anne Arundel County

Plumbing

Dates change; confirm with the official source before you act on one.

Every entry below names its official source and the date it was checked against that source.

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Deadlines

Anne Arundel backflow reports: passing within 30 days, failed within 72 hours

In Anne Arundel County, passing backflow test reports go to County DPW within 30 days, and failed tests within 72 hours.

Jurisdiction: Anne Arundel County

Source: Anne Arundel County DPW, Backflow Prevention / Cross-Connection page

Checked against this source on 2026-10-30

Renewals

State Board of Plumbing licenses expire 2 years from issue

State Board of Plumbing licenses and certificates (master, journey, and certificates) expire 2 years from the date of issue. A renewal notice goes out about 60 days ahead. A license lapsed more than 4 years requires a new application and exam.

Jurisdiction: Maryland

Source: MD Board of Plumbing, Renew or Reinstate Your License

Checked against this source on 2026-10-30

Cycles

Anne Arundel County backflow assemblies: tested after installation, then annually

In Anne Arundel County, backflow assemblies are tested after installation, then annually, and immediately following repairs, by a State-certified, County-approved tester.

Jurisdiction: Anne Arundel County

Source: Anne Arundel County DPW, Backflow Prevention / Cross-Connection page

Checked against this source on 2026-10-30