The laboratory shall examine specimens only at the written request of a licensed physician, dentist, osteopath, chiropractor, nurse practitioner, physician's assistant, or other person authorized by M.G. L. c. 112 to use the report of laboratory examinations. Reports shall be delivered only to those authorized by law to receive such results unless such examination was made for the sole purpose of accuracy or sufficiency of the procedures or equipment of a clinical laboratory and by instruction of the director of such laboratory.
105 CMR, § 180.280