US · guidance
BOP Program Statement 6370.02 § 5
ACCREDITED (NONWAIVED) LABORATORIES
a. Scope of Services. A CLIA Certificate of Accreditation will be maintained in each of the
Bureau MRCs. There will be two types of accredited laboratories. Each type will be assessed and
assigned in collaboration between the Medical Director and NLA. The two accredited laboratory
types will be labeled as follows:
MRC Laboratories
Medical Referral Laboratories (MRL)
Accreditation must be obtained through a nationally recognized accrediting body determined by
the Medical Director and NLA. Only nonwaived testing will be authorized for use and/or
oversight within the accredited laboratories.
MRCs may also obtain a separate CLIA Certificate of Waiver if oversight and testing are not
included within the accredited laboratory. These facilities will collaborate with the NLA to
determine oversight responsibility of the waived testing program.
MRC Laboratories.
MRC Laboratories will serve as the primary source for routine and STAT testing for
the local inmate population. The laboratory will only perform the tests approved by
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the LD and NLA. The approved menu will be reviewed and published annually in the
Laboratory Services section on the Bureau’s intranet site.
MRC Laboratories’ leadership structure will include a qualified LD and laboratory
supervisor. Testing personnel may include medical laboratory scientists and/or
medical laboratory technicians. Other support personnel can include health services
assistants and/or phlebotomists.
Medical Referral Laboratories.
MRLs will serve as the primary source for routine and STAT testing for the local
inmate population. These laboratories will also serve as the primary source for routine
laboratory testing for other geographically-appropriate assigned Bureau facilities. The
laboratory will only perform the tests approved by the LD and NLA. A specimen
collection and processing manual will be provided by each MRL's assigned facilities.
MRL leadership structure will include a qualified LD, laboratory manager, and
laboratory supervisors. Testing personnel will include medical laboratory scientists
and/or medical laboratory technicians. Other support personnel can include health
services assistants and/or phlebotomists.
b. Laboratory Requirements. Laboratories holding a CLIA Certificate of Accreditation will
meet the following core requirements (in addition to Subpart M of all applicable CLIA
Regulation Subparts). The following elaborations are provided to assist non-laboratory
healthcare professionals in understanding the intent and application of each requirement.
Regulatory citations reference 42 C.F.R. Part 493.
Laboratory Director qualifications. Regulatory Reference: 42 C.F.R. § 493.1405; 42
C.F.R. § 493.1443; 42 C.F.R. Part 493, Subpart M
The laboratory must have a qualified LD who meets specific educational and
experience requirements based on the complexity of testing performed. The director
is ultimately responsible for all laboratory operations, including test quality, staff
competency, and regulatory compliance. This person may not simply be an
administrator – they must have demonstrated scientific and clinical expertise
appropriate to the level of testing performed.
Proficiency testing. Regulatory Reference: 42 C.F.R. Part 493, Subpart H; 42 C.F.R. §
493.1236
Laboratories must enroll in and participate in a Health & Human Services (HHS)-
approved external Proficiency Testing (PT) program for each specialty and
subspecialty for which they seek certification. PT involves receiving unknown
samples from an outside organization, testing them in the same manner as patient
specimens, and submitting results for graded comparison. Successful PT performance
is required to maintain CLIA certification. Unsuccessful PT may trigger corrective
action and, if persistent, can result in loss of testing privileges for the affected test.
Intentional referral of PT samples to another laboratory for analysis may result in
certificate revocation.
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Quality management. Regulatory Reference: 42 C.F.R. Part 493, Subpart K; 42 C.F.R. §
493.1239
The laboratory must maintain a comprehensive Quality Management (QM) system
that monitors all phases of testing – before the sample is collected (pre-analytical),
during testing (analytical), and after results (post-analytical) are reported. This
includes tracking errors, monitoring turnaround times, reviewing complaints, and
identifying opportunities for improvement. Laboratories must document all quality
assessment activities, review the effectiveness of corrective actions, and discuss
findings with appropriate staff. QM is an ongoing, systematic process – not a one-time effort.
General issues. Regulatory Reference: 42 C.F.R. §§ 493.1231–493.1234; 42 C.F.R. Part
493, Subpart J
This category covers broad operational standards that apply across the laboratory,
including appropriate test ordering, patient identification, confidentiality of results,
and communication of critical values. Laboratories must have clear policies
addressing how general day-to-day operations are conducted and how deviations from
standard practice are identified and resolved. Laboratories must also document
complaints and investigate problems arising from breakdowns in communication
between the laboratory and ordering providers.
Written Quality Management/Quality Control program. Regulatory
Reference: 42 C.F.R. § 493.1256; 42 C.F.R. Part 493, Subpart K
• The laboratory must have a documented, written Quality Control (QC)
program that defines how the accuracy and precision of test results are
monitored every day. For each test system, control procedures must be
performed using the number and frequency specified by the manufacturer, or
as established by the laboratory when they meet or exceed regulatory
requirements. At a minimum, control procedures must be performed, at least
once, each day patient specimens are tested. This written program must
specify acceptable QC ranges, corrective actions when QC fails, and
documentation requirements.
Unusual laboratory results. Regulatory Reference: 42 C.F.R. §§ 493.1232–
493.1233; 42 C.F.R. § 493.1291
• Laboratories must have policies to identify, investigate, and communicate
results that fall outside expected ranges or that are clinically unexpected. This
includes delta checks (comparing a patient's current result to their previous
result), critical value notification, and investigation of results that may
indicate specimen integrity issues or instrument malfunction. Non-laboratory
staff should understand that unusual results trigger a defined internal review
process before being acted upon clinically. Laboratories must document all
complaint investigations and problems identified.
Supervisory result review. Regulatory Reference: 42 C.F.R. § 493.1407; 42
C.F.R. § 493.1445; 42 C.F.R. Part 493, Subpart M
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• Qualified laboratory supervisors must review test results before they are
finalized and reported. This is particularly important for complex or high-risk
tests. Supervisory review ensures results are accurate, complete, and clinically
plausible. Supervisors are also responsible for reviewing QC data, flagging
potential errors, and authorizing result release in accordance with laboratory
policy. Personnel requirements for supervisors are defined separately based on
testing complexity.
Instrument/equipment record review. Regulatory Reference: 42 C.F.R. §
493.1252; 42 C.F.R. § 493.1254; 42 C.F.R. § 493.1255
• Laboratories must maintain and regularly review complete records for all
instruments and equipment used in testing. These records include maintenance
logs, calibration records, function check records, and repair histories.
Calibration and calibration verification procedures are required to confirm the
continued accuracy of the test system throughout the laboratory's reportable
range. Equipment that is out of service or malfunctioning must be clearly
identified and removed from use until repairs are verified.
Comparability of instruments/methods. Regulatory Reference: 42 C.F.R. §
493.1253; 42 C.F.R. § 493.1289
• When a laboratory uses more than one instrument or method to perform the
same test, it must demonstrate that the results produced are comparable, i.e., a
patient would receive essentially the same result regardless of which
instrument or method was used. This is critical in settings where multiple
analyzers run the same test across shifts or locations. Laboratories must
perform and document comparability studies whenever new instruments are
added, or significant changes are made to existing methods.
Comparability criteria. Regulatory Reference: 42 C.F.R. § 493.1253(b); 42
C.F.R. § 493.1289
• Laboratories must define the specific, measurable criteria used to determine
whether instruments or methods are producing comparable results. These
criteria must be established in advance and must be clinically meaningful, i.e.,
any allowable difference between instruments must not be large enough to
affect patient care decisions. Documentation of these criteria and the results of
comparability testing must be maintained as part of the laboratory's quality
records.
Specimen collection and handling. Regulatory Reference: 42 C.F.R. § 493.1232;
42 C.F.R. § 493.1242
• The laboratory must establish and follow written policies and procedures
which ensure positive identification and optimum integrity of a patient's
specimen from the time of collection or receipt through completion of testing
and reporting of results. Non-laboratory staff involved in specimen collection,
such as nurses and phlebotomists, must follow laboratory-defined procedures,
6370.02 6/22/2026 PROPERTY OF US GOVERNMENT 8
including correct tube types, collection order, volume requirements, and
temperature conditions for transport. Improper collection or handling is one of
the most common sources of laboratory error and can result in inaccurate
results.
Procedure manuals. Regulatory Reference: 42 C.F.R. § 493.1251
• A written procedure manual for all tests, assays, and examinations performed
by the laboratory must be available to and followed by laboratory personnel.
Textbooks may supplement but not replace the laboratory's written
procedures. The procedure manual must include requirements for patient
preparation; specimen collection, labeling, storage, preservation,
transportation, and processing; step-by-step performance of the procedure;
calibration and calibration verification procedures; the reportable range; and
corrective actions when QC fails. Procedure manuals must be reviewed and
approved annually by the LD.
Results reporting. Regulatory Reference: 42 C.F.R. § 493.1291; 42 C.F.R. Part
493, Subpart K
• Laboratory results must be reported in a clear, accurate, and timely manner to
authorized individuals. Reports must include the patient's name and identifier,
the test name, result, units of measurement, reference intervals, and the
laboratory's name and address.
• Critical values must be communicated immediately to the responsible
clinician. Each facility will develop a local procedure for reviewing and acting
upon abnormal laboratory values to ensure prompt and appropriate follow-up
to abnormal lab results, including critical labs.
• Laboratories must also have policies for amended reports when errors are
corrected after initial release. Requests for corrected reports are forwarded to a
health informatic specialist with the basis for correction.
Reagents. Regulatory Reference: 42 C.F.R. § 493.1252
• All test systems, equipment, instruments, reagents, materials, and supplies
used in laboratory testing must be monitored to ensure they are acceptable for
performing the type of testing required. Reagents must be labeled with lot
numbers and expiration dates, and expired reagents must never be used for
patient testing. Laboratories must document receipt, quality checks, and any
issues with reagents. Reagent failure is a recognized cause of inaccurate
results and must be addressed through the laboratory's corrective action
process.
Instruments and equipment. Regulatory Reference: 42 C.F.R. § 493.1252; 42
C.F.R. § 493.1254; 42 C.F.R. § 493.1255
• The laboratory must maintain all instruments and equipment in proper
working order through a defined preventive maintenance and function check
program. Each instrument must be calibrated on a schedule that meets
manufacturer and regulatory requirements. Records of all maintenance,
6370.02 6/22/2026 PROPERTY OF US GOVERNMENT 9
calibration, and corrective actions must be retained. Equipment that is out of
service or malfunctioning must be clearly identified and removed from use
until repairs are verified and documented.
Test method validation/verification. Regulatory Reference: 42 C.F.R. §
493.1253
• Before any new test is introduced into clinical use, the laboratory must
establish or verify the performance specifications of the test system. For FDA-cleared or approved test systems, the laboratory must verify performance
specifications are achievable. For laboratory-developed tests or modified
FDA-cleared tests, the laboratory must establish performance specifications.
This process includes evaluating accuracy, precision, and reportable range.
Results must be reviewed and approved by the LD before patient testing
begins.
Method Performance Specifications. Regulatory Reference: 42 C.F.R. §
493.1253; 42 C.F.R. § 493.1251(b)(9)
• Each test method must have clearly defined performance specifications,
including the analytical measurement range (the range of values the test can
accurately measure), precision (reproducibility of results), accuracy (closeness
to the true value), and any known interferences or limitations in the
methodology. These specifications guide clinical interpretation and help
clinicians understand the limitations of any given test result. Limitations in
test methodology, including interfering substances, must be documented in the
procedure manual.
Reference intervals. Regulatory Reference: 42 C.F.R. § 493.1253(b)(4); 42
C.F.R. § 493.1251
• Reference intervals define the expected range of results for a healthy
population. Laboratories must verify the reference intervals they use are
appropriate for their patient population, taking into account factors such as
age, sex, and specimen type. If a laboratory's patient population differs
significantly from the population used to establish published reference
intervals, the laboratory must establish its own reference intervals. Reference
intervals must be included in the procedure manual and reviewed and updated
as needed.
Personnel requirements. Regulatory Reference: 42 C.F.R. Part 493, Subpart M;
42 C.F.R. § 493.1235
• All laboratory personnel must meet minimum qualifications based on the
complexity of the tests they perform. CLIA defines specific education,
training, and experience requirements for testing personnel, technical
supervisors, laboratory supervisors, and laboratory directors performing
moderate and high complexity testing. Laboratories must establish and follow
written policies and procedures to assess staff competency and must review
6370.02 6/22/2026 PROPERTY OF US GOVERNMENT 10
and evaluate the results of that assessment. Competency must be assessed at
least annually for all testing personnel.
Physical Facilities. Regulatory Reference: 42 C.F.R. Part 493, Subpart J
• The laboratory must maintain a safe and functional physical environment that
supports accurate testing. This includes adequate space, appropriate lighting,
temperature and humidity control, proper ventilation, and safe storage of
chemicals and biological materials. Facilities must be designed and
maintained to prevent contamination, protect specimen integrity, and support
the workflow necessary for the volume and complexity of testing performed.
Laboratories must also comply with applicable federal, state, and local facility
requirements.
Laboratory Safety. Regulatory Reference: 42 C.F.R. Part 493, Subpart J; 29
C.F.R. Part 1910 – Occupational Safety and Health Standards
• Laboratories must comply with all applicable safety regulations in addition to
CLIA, including those established by the Occupational Safety and Health
Administration (OSHA), the Centers for Disease Control and Prevention
(CDC), and applicable state and local authorities. This includes programs for
bloodborne pathogen exposure prevention, chemical hygiene, fire safety, and
electrical safety. Laboratories must maintain Safety Data Sheets (SDS) for all
hazardous chemicals, provide appropriate personal protective equipment
(PPE), and train all personnel in safety practices. A safe laboratory
environment protects not only laboratory staff, but also patients and other
healthcare workers who interact with the laboratory.
c. Laboratory Equipment and Supplies Standardization. The Bureau will standardize
specified laboratory-related equipment and supplies. National contracts will be attained to assist
with standardization. Health Services Administrators and appropriate laboratory leadership are
expected to work within all applicable laboratory national agreements. The NLA will assist
facilities in obtaining laboratory equipment and supplies through these national agreements.
d. Blood Transfusion Services. Accredited laboratories have the option, depending on their
mission, to have a blood transfusion service. Facilities opting to have a blood transfusion service
will comply with the following specific requirements:
Under no circumstances will Bureau laboratories perform donor collection or blood-component processing. Under this program statement, transfusion services are limited to
storage, compatibility testing, and administration.
Personnel in the transfusion service will have sufficient training and/or experience and
demonstrate technical competence in the performance of immunohematology procedures
performed.
Institutions performing blood transfusions will have written policies and procedures
which conform to all applicable accrediting standards.
6370.02 6/22/2026 PROPERTY OF US GOVERNMENT 11
Any provider can order a transfusion, but orders for transfusion must be reviewed and co-signed by a physician before the lab can process the order and distribute units.
These policies and procedures will be readily available to staff and will be reviewed at least
every two years by the LD and revised as necessary.
Blood or blood components will be stored and handled in such a manner that they retain
their maximum efficacy and safety. They will be properly processed, tested, and labeled.
Refrigerators used for the routine storage of blood will conform to all specifications of
the applicable accrediting blood banking standards. The proper functioning of the
refrigerator will be constantly monitored as outlined by accrediting standards.
A written procedure will be established for always obtaining necessary blood and blood
components. It will be documented that stored blood is inspected daily for evidence of
hemolysis and for possible bacterial contamination.
Blood and blood components will be obtained only from FDA-licensed blood
establishments. Selection of the supplier will be approved by the LD and institution
leadership.
History
PS 6370.02 dated 2026-06-22
Provenance
- Source
- bop.gov
- Retrieved
- 2026-09-20
- Edition
- bop-ps-2026-09-20
- Content hash
6dc73a0cc2da459dd9666f9f6f886219a1de5aa18108a38011cc67ba52556b2d
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