California Code, Health and Safety Code - HSC § 100847

(a) The period of accreditation for TNI accredited laboratories shall be 12 months. An application for renewal shall be filed with the state board prior to the expiration date of the accreditation. Failure to make timely application for renewal shall result in expiration of the accreditation.

(b) The accrediting authority shall be notified in writing within 30 calendar days of the sale or other transfer of ownership of a TNI accredited laboratory.

(c) The accrediting authority shall be notified in writing within 30 calendar days of the change in location of a TNI accredited laboratory, other than a mobile laboratory.

(d) The accrediting authority shall be notified within 30 calendar days whenever there is a change of laboratory director, or other individual in charge of the laboratory.

(e) TNI accredited laboratories shall conspicuously display their most recent TNI accreditation certificate or their accreditation fields of testing, or both, in a permanent place in their laboratory.

(f) TNI accredited laboratories shall not use their TNI accreditation document or their accreditation status to imply any endorsement by the accrediting authority.