Radon Measurement Certification

NRPP Radon Measurement Certification is for professionals who test homes and buildings for radon gas. It confirms that the credential holder can select, place, retrieve and interpret radon measurements to a recognized standard, and that they have agreed to work to the NRPP code of ethics.

Credentials in this discipline

Measurement is not a single credential. Choose the one that matches the work you actually do.

• RMP-S, Radon Measurement Professional (Standard). Certified to measure radon using standard passive devices only.
• RMP-A, Radon Measurement Professional (Analytical). Certified to measure radon using both analytical and standard passive devices. This is the credential to hold if you read your own devices.
• RMFT, Radon Measurement Field Technician. Places and retrieves devices under the supervision of an RMP. An RMFT may not analyze or interpret results, report results to a client, or recommend further testing or mitigation. The supervising RMP relationship must be reported to NRPP.

Requirements

• Complete an NRPP approved initial training course in radon measurement.
• Pass the NRPP radon measurement examination. Exams are delivered remotely and are four option multiple choice.
• Register each measurement device you intend to use and provide a calibration certificate for it.
• Submit a passing device performance test for any analytical device at the point of first registration.
• Sign the NRPP code of ethics and confirm that you hold and follow a quality assurance and quality control plan.

Certification is valid for two years. Indoor Environments Association membership is not required in order to be certified.

How to apply

• Take an approved initial training course. Course completion is valid for [confirm validity period] from the completion date.
• Register for and pass the examination.
• Request a certification application, then upload your course completion certificate and the remaining evidence to your NRPP account.
• Pay the application fee. Current fees are published on the fee schedule [confirm fee schedule link].

There are separate costs for training, for the examination, for acquiring a device and for the device performance test. These are paid to the relevant provider rather than to NRPP.

Keeping the credential

Every two years you renew. Renewal requires eight hours of continuing education, the Mandatory Standards Overview course, current calibration certificates for your registered devices, your state license where your state issues one, and signed ethics and QA/QC declarations. See Continuing Education for what counts and the category limits.

State requirements

NRPP certification is not a state license and does not grant one. Some states require a license to measure radon commercially and some do not. Contact your state radon office to find out what applies where you work.