To assure state residents that testing and remediation are performed efficiently and to the highest possible standards, New Jersey law requires that the New Jersey Department of Environmental Protection (NJDEP) certify radon measurement and mitigation businesses. All persons who perform radon measurement tests or mitigation in New Jersey must be certified. They must demonstrate sufficient education and experience, take NJDEP approved courses in radon testing and mitigation techniques, and pass a written examination.

In New Jersey, residents should only work with businesses that are certified to measure and/or remediate radon. Individuals from the businesses must have proof of certification and homeowners should ask to see that proof. Each certification is good for a year and then must be renewed with the state. Even the radon test devices sold in stores are required to be from companies that the NJDEP has certified.

There are two types of certified radon business available in New Jersey:

1. Certified Radon Measurement Business

2. Certified Radon Mitigation Business

Please contact the Radon Program [(800)648-0394 within New Jersey or (609)984-5425 from outside New Jersey] to obtain an application and further information.

There are four types of radon worker certification available in New Jersey:

1. Certified Radon Measurement Specialist

2. Certified Radon Measurement Technician

3. Certified Radon Mitigation Specialist

4. Certified Radon Mitigation Technician

Individuals who want to become a certified radon worker must:

1. Attend a New Jersey approved course (see list of approved training courses).

2. Pass the New Jersey Certification Examination.

3. Affiliate with a certified Radon Business

Individuals seeking measurement certification must affiliate with a certified radon measurement business (see list of certified radon measurement businesses).

Individuals seeking measurement certification must affiliate with a certified radon mitigation business (see list of certified radon mitigation businesses).

4. Obtain a provisional certification and affiliate with a certified business. After completing six months as a provisional, you can apply for full certification.

Please contact the Radon Program [(800)648-0394 within New Jersey or (609)984-5425 from outside New Jersey] to obtain an application and further information.