Minnesota Administrative Rules

4620.7400 STANDARDS OF CONDUCT.

Subpart 1.

Radon measurement and radon mitigation professional standards.

A radon measurement professional and a radon mitigation professional must:

A.

operate according to a quality assurance and quality control plan submitted to the commissioner under parts 4620.7200 and 4620.7300;

B.

use a continuous monitor or passive device approved by a national radon proficiency program;

C.

notify the commissioner in writing within 30 days of any change to the license application information provided under parts 4620.7200 and 4620.7300;

D.

maintain proof of a valid license issued under this chapter at all times while at a project site;

E.

use the services of a radon laboratory licensed by the commissioner under part 4620.7350 to analyze radon samples;

F.

maintain records for three years of each radon test performed;

G.

maintain radon measurement device calibration records for three years. Device calibration records include the:

(1)

manufacturer of a calibrated device;

(2)

model number of a calibrated device;

(3)

serial number of a calibrated device;

(4)

date of instrument calibration; and

(5)

name of the calibration facility; and

H.

not interfere with the commissioner's inspection or audit of any radon measurement or mitigation project.

Subp. 2.

Radon mitigation company and sole proprietor radon mitigation professional standards.

A radon mitigation company and a radon professional engaged as a sole proprietor with no employees and no subcontractors who are licensed radon mitigation professionals must:

A.

verify that employees directly involved in radon mitigation complete an NRPP-approved training course or a minimum of eight hours of basic mitigation training provided by a licensed radon mitigation professional. The training must be:

(1)

provided before working on a mitigation project;

(2)

performed annually; and

(3)

documented by having trainees acknowledge with their written signature that they have received training meeting the requirements of this part;

B.

maintain a record of training required under item A for three years;

C.

verify that all of its mitigation professionals, employees, and subcontractors comply with parts 4620.7000 to 4620.7950;

D.

verify that radon mitigation is performed with on-site supervision of a licensed mitigation professional;

E.

maintain records for three years of each radon mitigation performed, including records required under parts 4620.7500 and 4620.7600, subpart 2;

F.

notify the commissioner in writing within 30 days of any change to the license application information provided under part 4620.7250; and

G.

obtain a permit from the local unit of government when the installation of a radon mitigation system alters any structural component of the building framing system. A permit is not required when only the rim joist area is penetrated.

Subp. 3.

Radon analysis laboratory standards.

An approved radon analysis laboratory must:

A.

maintain current documentation required under part 4620.7350;

B.

maintain the certification status of a national radon proficiency program;

C.

notify the commissioner in writing within 30 days of any change to the license application information provided under part 4620.7350; and

D.

maintain the status requirement of part 4620.7350, subpart 2, item H. If status is no longer current, the commissioner shall suspend the radon laboratory license under Minnesota Statutes, section 144.99, subdivision 9.

Statutory Authority:

MS s 144.4961

History:

43 SR 687

Published Electronically:

December 20, 2018