Licensing & insurance

Texas Responsible Master Plumber insurance requirements

What the Texas State Board of Plumbing Examiners requires for Responsible Master Plumber insurance: the $300,000 commercial general liability minimum, the TSBPE certificate form, and common mistakes.

Regulatory information last reviewed October 13, 2026 against tsbpe.texas.gov.

This is an educational resource from an independent insurance agency. Texas Plumbing Insurance is not affiliated with the Texas State Board of Plumbing Examiners (TSBPE). The Board’s own website is the authority on licensing requirements. Confirm current rules there before relying on this summary.

What a Responsible Master Plumber is

In Texas, a Responsible Master Plumber (RMP) is a licensed master plumber who takes responsibility for the general supervision and management of plumbing work a company performs under contract, whether that work is done by employees or subcontractors. The RMP must make sure everyone doing plumbing work is properly licensed or registered, and the RMP obtains permits and requests inspections. According to the Board, an RMP may serve as the RMP of record for only one company at a time.

The insurance requirement

To hold the RMP designation, the Board requires proof of commercial general liability insurance of at least $300,000. The Board’s certificate form describes this as coverage for the named Responsible Master Plumber in an amount of not less than $300,000 for all claims arising in any one-year period.

The purpose is consumer protection: a minimum level of liability coverage behind plumbing work performed in Texas.

The certificate: TSBPE’s form, not ACORD

This is where many submissions go wrong. The Board states that ACORD certificate forms are not accepted. The only valid certificate is the TSBPE Certificate of Insurance, which carries the Board’s seal. The form is completed and signed by your insurance agent and lists the Board as certificate holder.

The form asks for, among other things:

  • RMP name and license number, business name, and RMP contact information
  • Business owner name
  • Insurance company, policy number, and effective and expiration dates
  • Insurance agency name, agent contact information, and agent signature

According to the form, certificates can be uploaded through the Board’s online licensing system or emailed to the Board, and email submissions may take longer to process.

Keeping it active

The RMP must maintain the coverage, not just show it once. When your policy renews, a new certificate is needed. The Board’s instructions say a new certificate should not be uploaded until shortly before the previous one expires. Build the certificate into your renewal routine so there’s no gap in your RMP status.

Common certificate mistakes

  • Sending an ACORD certificate instead of the TSBPE form
  • An unsigned form or one missing the agent’s information
  • The RMP’s name or license number missing or not matching Board records
  • Expired policy dates, or a renewal certificate never sent
  • Submitting too early, before the previous certificate is near expiration
  • The policy listed is not commercial general liability, or the limit is below $300,000

The licensing minimum vs. what a business needs

$300,000 satisfies the license. It was never meant to be the right limit for an established plumbing company. Consider:

  • Commercial contracts routinely require $1,000,000 per occurrence and $2,000,000 aggregate or more, often with an umbrella.
  • A single water-damage claim in a commercial building or a high-value home can exceed $300,000.
  • Completed operations exposure builds over every job you finish.

See why $300,000 may not be enough and general liability for Texas plumbers.

How we help

As your agent, we can complete and sign the TSBPE certificate when your policy meets the requirement, and send updated certificates at renewal. More importantly, we help make sure the policy behind it fits the business you actually run.

Common questions

Will the Board accept a standard certificate of insurance?

According to the Board, no. ACORD certificates are not accepted. Use the TSBPE Certificate of Insurance form, signed by your insurance agent.

Is the $300,000 per occurrence or aggregate?

The Board’s form describes coverage of not less than $300,000 for all claims arising in any one-year period. Confirm the current wording on the Board’s website, and talk with your agent about how your policy’s limits are structured.

Who should I contact about my RMP status?

The Texas State Board of Plumbing Examiners. Licensing questions belong with the Board; insurance and certificate questions can come to your agent.

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