(1) In order to be licensed, a laboratory must:

(a) meet all of the applicable personnel, equipment, training, and facility requirements of this subchapter;

(b) at least once during the three-year term of its license, pass an on-site inspection by an agent of the environmental laboratory that shows compliance with the requirements of these rules for the license category in question;

(c) if the laboratory performs chemical analyses, have performed analyses on at least two performance evaluation (PE) samples for each analyte or interdependent analyte group and each method each year during the term of its license; and

(d) if the laboratory performs microbiological analyses, have successfully performed analyses on at least two performance evaluation (PE) samples for each analyte and method each year during the term of its license.