For physician office laboratories and small clinic labs, COLA accreditation provides a practical pathway to performing moderate and high-complexity testing with a quality framework that is proportionate to the laboratory's size and testing scope. The alternative — a CLIA Certificate of Compliance with CMS or state agency inspections — provides less educational support and may be less structured for laboratories that are building their quality systems from scratch.

COLA's education-focused approach is particularly valuable for practices that are new to laboratory operations. The COLA survey process is designed to help laboratories identify and correct quality gaps, not just document compliance. For a startup clinic laboratory, the COLA accreditation process can serve as a structured quality improvement program that builds the laboratory's capabilities over time.

From a market perspective, COLA accreditation is widely recognized and accepted. While some hospital systems and large health networks prefer CAP accreditation for reference laboratory contracts, COLA accreditation is generally sufficient for physician office laboratories that are performing testing for their own patients. Practices that are building an in-house laboratory primarily to support their own clinical operations — rather than competing for reference laboratory contracts — will typically find COLA accreditation to be the right fit.

COLA was established in 1988 in response to the enactment of CLIA, with a specific focus on supporting physician office laboratories in meeting the new federal quality standards. The organization was founded with backing from major physician organizations including the American Medical Association, the American Academy of Family Physicians, and the American College of Physicians, reflecting the medical community's recognition that physician office laboratories needed a quality framework tailored to their specific context.

CMS approved COLA as an accreditation organization in 1993, allowing COLA-accredited laboratories to receive a CLIA Certificate of Accreditation. Since then, COLA has accredited thousands of physician office laboratories and small clinical laboratories across the United States. COLA has also expanded its programs to include point-of-care testing accreditation, toxicology laboratory accreditation, and educational resources for laboratory professionals.

COLA accreditation is recognized by CMS under the authority of 42 U.S.C. 263a(e) and 42 CFR 493.501-493.575, which establish the framework for CMS-approved accreditation organizations. COLA-accredited laboratories receive a CLIA Certificate of Accreditation from CMS, authorizing moderate and high-complexity testing.

CMS reviews and renews its approval of COLA's accreditation program periodically to verify that COLA's standards remain equivalent to or more stringent than CLIA requirements. COLA must report certain findings to CMS, including laboratories that fail to achieve or maintain accreditation.

Proficiency testing requirements under CLIA (42 CFR Part 493, Subpart H) must be satisfied by COLA-accredited laboratories through participation in an approved proficiency testing program. COLA offers its own proficiency testing program and also accepts PT from other CMS-approved PT providers.

As with CAP accreditation, COLA accreditation satisfies CLIA requirements at the federal level but does not automatically satisfy state laboratory licensing requirements in states with their own programs. New York State, California, Florida, and several other states require separate state laboratory licensure regardless of CLIA or accreditation status.

Physician office laboratories in states with their own licensing programs should verify whether COLA accreditation satisfies any state-level requirements or whether separate state licensure is also needed. COLA's customer service team can provide guidance on state-specific requirements.