Sec. 2.948  Description of measurement facilities.

    (a) Each party making measurements of equipment that is subject to 
an equipment authorization under part 15 or part 18 of this chapter, 
regardless of whether the measurements are filed with the Commission or 
kept on file by the party responsible for compliance of equipment 
marketed within the U.S. or its possessions, shall compile a description 
of the measurement facilities employed.
    (1) If the measured equipment is subject to the verification 
procedure, the description of the measurement facilities shall be 
retained by the party responsible for verification of the equipment.
    (i) If the equipment is verified through measurements performed by 
an independent laboratory, it is acceptable for the party responsible 
for verification of the equipment to rely upon the description of the 
measurement facilities retained by or placed on file with the Commission 
by that laboratory. In this situation, the party responsible for 
verification of the equipment is not required to retain a duplicate copy 
of the description of the measurement facilities.
    (ii) If the equipment is verified based on measurements performed at 
the installation site of the equipment, no specific site calibration 
data is required. It is acceptable to retain the description of the 
measurement facilities at the site at which the measurements were 
performed.

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    (2) If the equipment is to be authorized by the Commission under the 
certification or the notification procedure, the description of the 
measurement facilities shall be filed with the Commission's Laboratory 
in Columbia, Maryland. The data describing the measurement facilities 
need only be filed once but must be updated as changes are made to the 
measurement facilities or as otherwise described in this section. At 
least every three years, the organization responsible for filing the 
data with the Commission shall certify that the data on file is current.
    (3) If the equipment is to be authorized under a Declaration of 
Conformity, the description of the measurement facilities shall be 
retained by the party performing the measurements.
    (b) The description shall contain the following information:
    (1) Location of the test site.
    (2) Physical description of the test site accompanied by photographs 
of size A4 (21 cm  x  29.7 cm) or 8 x 10 inches (20.3 cm  x  25.4 cm). 
Smaller photographs may be used if they clearly show the details of the 
test site and are mounted on full size sheets of paper.
    (3) A drawing showing the dimensions of the site, physical layout of 
all supporting structures, and all structures within 5 times the 
distance between the measuring antenna and the device being measured.
    (4) Description of structures used to support the device being 
measured and the test instrumentation.
    (5) List of measuring equipment used.
    (6) Information concerning the calibration of the measuring 
equipment, i.e., the date the equipment was last calibrated and how 
often the equipment is calibrated.
    (7) If desired, a statement as to whether the test site is available 
to do measurement services for the public on a fee basis.
    (8) A plot of site attenuation data.
    (i) For a measurement facility that will be used for testing 
radiated emissions from a digital device on or after May 1, 1994, or for 
testing intentional and other unintentional radiators authorized under 
part 15 of the rules on or after June 1, 1995, the site attenuation data 
shall be taken pursuant to the procedures contained in Sections 5.4.6 
through 5.5 of the following procedure: American National Standards 
Institute (ANSI) C63.4-1992, entitled ``Methods of Measurement of Radio-
Noise Emissions from Low-Voltage Electrical and Electronic Equipment in 
the Range of 9 kHz to 40 GHz,'' published by the Institute of Electrical 
and Electronics Engineers, Inc. on July 17, 1992 as document number 
SH15180. This incorporation by reference was approved by the Director of 
the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 
51. Copies of ANSI C63.4-1992 may be obtained from: IEEE Standards 
Department, 455 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331, 
telephone 1-800-678-4333. Copies of ANSI C63.4-1992 may be inspected at 
the following locations:
    (A) Federal Communications Commission, 2025 M Street, NW., Office of 
Engineering and Technology (room 7317), Washington, DC 20554,
    (B) Federal Communications Commission Laboratory, 7435 Oakland Mills 
Road, Columbia, MD 21046, or
    (C) Office of the Federal Register, 800 North Capitol Street, NW., 
suite 700, Washington, DC.
    (ii) For a measurement facility that will be used for testing 
radiated emissions from a digital device prior to May 1, 1994, or from 
intentional and other unintentional radiators authorized under part 15 
prior to June 1, 1995, or from devices authorized under part 18 of the 
rules, the site attenuation data shall be taken pursuant to either ANSI 
C63.4-1992, Sections 5.4.6 through 5.5, or FCC/OET Bulletin 55.
    (iii) This requirement does not apply to equipment that is not 
measured on an open field test site.
    (9) A description of the types of equipment intended to be measured 
or other information regarding the types of measurements that would be 
performed at the test facility.
    (c) The Commission will publish a list of those parties who have 
filed the information required by this section, provided they indicate 
that they wish to perform measurement services for the public on a fee 
basis. However, it should be noted that the Commission does not endorse 
or approve any facility on this list.

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    (d) If the equipment is to be authorized under a Declaration of 
Conformity, the party performing the measurements shall be accredited 
for performing such measurements by an authorized accreditation body 
based on the International Organization for Standardization/
International Electrotechnical Commission (ISO/IEC) Guide 25, ``General 
Requirements for the Competence of Calibration and Testing 
Laboratories.'' Accreditation bodies must be approved by the FCC's 
Office of Engineering and Technology, as indicated in Sec. 0.241 of this 
chapter, to perform such accreditation based on ISO/IEC 58, 
``Calibration and Testing Laboratory Accreditation Systems--General 
Requirements for Operation and Recognition.'' The frequency for 
revalidation of the test site and the information required to be filed 
or retained by the testing party shall comply with the requirements 
established by the accrediting organization.
    (1) In addition to meeting the above requirements, the 
accreditations of laboratories located outside of the United States or 
its possessions will be acceptable only under one of the following 
conditions:
    (i) If there is a mutual recognition agreement between that country 
and the United States and that laboratory is covered by the agreement;
    (ii) If there is an agreement between accrediting bodies that 
permits similar accreditation of U.S. facilities to perform testing for 
products marketed in that country; or
    (iii) If the country already accepts the accreditation of U.S. 
laboratories.
    (2) Organizations outside of the United States that seek to become 
accreditors may seek agreements with approved United States accrediting 
bodies to mutually recognize the accreditation of laboratories. The 
Commission will review such agreements and will consult with the Office 
of the United States Trade Representative and other Executive Branch 
agencies before accepting them for purposes of the DoC procedure in 
order to ensure that the respective foreign countries accept United 
States accreditations and do not impose additional barriers upon United 
States companies. Accrediting bodies located outside of the United 
States will only be permitted to accredit laboratories within their own 
country for DoC testing.
    (3) To facilitate use of the DoC procedure, the FCC will accept a 
laboratory that submits documentation to OET's Equipment Authorization 
Division stating that it has filed an application for accreditation with 
an approved laboratory accreditation body and provides evidence that it 
meets all aspects of ISO/IEC Guide 25. Such labs will be provisionally 
accepted by the FCC for a period of one year (until August 19, 1997) or 
until the application for accreditation has been acted upon, whichever 
is sooner. A laboratory that is denied accreditation by an approved 
accreditation body will lose its provisional acceptance. However, any 
DoCs that were issued will remain valid.
[ 54 FR 17712 , Apr. 25, 1989, as amended at  57 FR 24990 , June 12, 1992; 
 58 FR 37430 , July 12, 1993;  58 FR 44893 , Aug. 25, 1993;  61 FR 31046 , 
June 19, 1996;  62 FR 41880 , Aug. 4, 1997]

                              Verification

    Authority: Sections 2.951 through 2.957 are issued under secs. 4, 
303, 307, 48 Stat., as amended, 1066, 1082, 1083; 47 U.S.C. 154, 303, 
307.

    Source: Sections 2.951 through 2.957 appear at  46 FR 23249 , Apr. 24, 
1981, unless otherwise noted.