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Office of Engineering and Technology Laboratory Division Knowledge Database (KDB)

Welcome to the OET Laboratory Division Knowledge Database (KDB). The FCC Office of Engineering and Technology (OET) publishes equipment authorization procedures and measurement guidance in the form of FCC Public Notices and Knowledge Database (KDB) publications. The staff guidance provided in the KDB is intended to assist the public in following Commission requirements and does not constitute rules. Accordingly, the guidance is not binding on the Commission and will not prevent the Commission from making a different decision in any matter that comes to its attention for resolution.

The Basic KDB Search is a full text search and the Advanced KDB Search allows for input of multiple search criteria. The KDB Publication Number search is a quick search for a specific publication. We hope that your visit is both timely and useful.

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Publication Searches:

Basic KDB Search: Enter a text string in the field below. This search scans the Knowledge Database for any publications that include the text entered. Alternative search results can be obtained by using the syntax described by clicking here.
Text search:

Advanced KDB Search: Search for publications that meet one or more identified criteria.

Major Guidance Publications: View publications associated with major guidance categories.

KDB Publication Number Search: Search for a specific publication by entering the publication number:
Publication Number:

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Recent KDB Publications:
Publication NumberQuestionAnswer
628591  What equipment cannot be certified by a Telecommunications Certification Body? The attached document 628591 D01 TCB Exclusion List v16 identifies equipment that are excluded from being certified by a TCB. At t the present time, the TCBs are allowed to certify the items previously included on the TCB Exclusion List under the Permit-b...
388624  What devices require FCC permission for a TCB to issue a grant of equipment authorization, and what are the procedures to obtain permission? The attached documents are relevant to the FCC "Permit But Ask" procedure. Attachment 388624 D02 Permit But Ask List v15 provides the current list of devices that require FCC permission for a TCB to issue a grant of equipment authorization, and attachment...
200443  What measurement procedures should be used for determining compliance of millimeter wave devices? Attachment below 200443 D02 RF Detector Method v01 provides further guidance for Sections 15.255 and 15.257 on how to perform measurements using an RF detector that has a detection bandwidth of 57 GHz to 64 GHz or 92 GHz to 95 GHz and a video bandwidth ...
553680  Explain Part 80 marine VHF (156-162 MHz band) ship radio frequency allocations with regards to domestic and international regulations. A marine VHF radio certified under Part 80 must comply with the following: Transmitting frequencies must be limited to those described in the table in 47 CFR 80.871(d), i.e., using the ship station frequencies in the table in the simplex and semi-dup...
610077  What are the post market surveillance requirements for a Telecommunications Certification Body (TCB)? Section 2.962(g) of the FCC Rules requires a TCB conduct appropriate post-market surveillance activities in accordance with ISO/IEC Guide 65. The requirements for TCBs were specified in the Commission's Report and Order (R&O) in GEN Docket 98-68 (FCC 98-3...
935210  What is the Commission guidance for the evaluation of Signal Boosters? FCC Report and Order (FCC 13-21) introduces a new regulatory framework for signal boosters, including the introduction of a Network Protection Standard (NPS) that specifies the technical and operational requirements necessary to minimize the potential for...
890966  What is the measurement procedure for level probing radars? The attachment, 890966 D01 Level Probing Radar v01, provides guidance on making measurements for devices operating under section 15.256.   Level probing radars approved under either section 15.209 or 15.256 shall use the equipment authorization ...
920091  What is a Telecommunication Certification Body (TCB)? A TCB is a private third-party certification body that is authorized to issue grants of equipment authorization (within its scope of designation) for equipment subject to the Commission?s certification procedure. A TCB has the authority to review and gran...
641163  What guidance does the FCC provide to Telecommunication Certification Bodies (TCBs) regarding their roles and responsibilities as an obligation of being recognized by the FCC? The FCC provides guidance to the TCBs, and an overview of the TCB program, in the TCB Program Roles and Responsibilities document: 641163 D01 TCB Program Roles and Resp v02 attached below.
974614  What guidance does the FCC provide to accredited testing laboratories that are recognized by the FCC to test products subject to Declaration of Conformity (DoC) and Certification procedures? The FCC provides guidance to accredited testing laboratories and an overview in the Accredited Testing Laboratory Program Roles and Responsibilities document: 974614 D01 Accredited Test Lab Roles and Resp v02 attached below.
668797  What guidelines does the FCC provide to an accrediting body performing an assessment of a certification body to determine capability and competence of that certification body to authorize equipment in compliance with the FCC regulatory requirements? The attachment 668797 D01 TCB Program ISO_IEC Guide 65 Checklist v02 below is intended to serve as a guide and provide a minimum list of items to be included in the evaluation of a certification body as part of the complete ISO/IEC Guide 65 assessment for...

Recent Guidelines and Interpretations:

Posted on Apr 28 2009 3:02PM:

Updates will be forthcoming.

Important Notes:

Inquiry Responses and Publications: FCC staff publications and replies to inquiries from the KDB are based on one or more of the following criteria:

1. Responses that the FCC staff have given to prior inquiries.
2. Staff guidance of the Commission's rules and policies.
3. Prior staff practices

The KDB publications regarding measurement procedures constitute staff guidance only and do not necessarily represent the only acceptable methods for measuring RF emissions. Nor are these guidelines binding on the Commission or any interested party.

Stay updated on newly published guidance and frequently asked questions by adding this RSS feed to your reader.

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