G/TBT/N/USA/1743  
5 July 2021  
(21-5305) Page: 1/2 
Committee on Technical Barriers to Trade  Original:  English  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member:  UNITED STATES OF AMERICA   
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible:  Federal Communications Commission (FCC)  
Name and address (including telephone and fax numbers , email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indicated if dif ferent from above:   
Please submit comments to: USA WTO TBT Enquiry Point, Email: usatbtep@nist.gov  
3. Notified under Article 2.9.2 [X], 2.10.1 [   ], 5.6.2 [X], 5.7.1 [   ], other :  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provided in addition, where applicable):  Wireless 
Microphones; Wireless Multi -Channel Audio System (WMAS); Quality (ICS 03.120), Audio, 
video and audiovisual engineering (ICS 33.1 60), Television and radio broadcasting (ICS 
33.170)  
5. Title, number of pages and language(s) of the notified document:  Wireless 
Microphones in the TV Bands, 600 MHz Guard Band, 600 MHz Duplex Gap, and the 941.5 -
944 MHz, 944 -952 MHz, 952.850 -956.250 MHz, 956.45 -959.85 MHz, 1435 -1525 MHz, 
6875-6900 MHz and 7100 -7125 MHz Bands (13 page(s), in English)  
6. Description of content:  Notice of Proposed Rulemaking (NPRM) - In this document, the 
Commission aims to enhance the spectral efficiency of wireless microph ones by permitting 
a recently developed type of wireless microphone system, termed herein as a Wireless 
Multi-Channel Audio System (WMAS), to operate in certain frequency bands. This 
emerging technology would enable more wireless microphones to operate in the spectrum 
available for wireless microphone operations, and thus advances an important 
Commission goal of promoting efficient spectrum use. The Commission proposes to revise 
the applicable technical rules for operation of low -power auxiliary station (LP AS) devices 
to permit WMAS to operate in the broadcast television (TV) bands and other LPAS 
frequency bands on a licensed basis. The Commission also proposes to update the existing 
LPAS and wireless microphone rules to reflect the end of the post -Incentive  auction 
transition period and update references to international wireless microphone standards.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Prevention of deceptive practices and consumer protection; Quality 
requirements; Harmonization; Cost saving and productivity enhancement  
8. Relevant documents:  86 Federal Register (FR) 35046, 1 July 2021; Title 47 Code of 
Federal Regulations (CFR) Parts 15 and 74:  
https://www.govinfo.gov/content/pkg/FR -2021-07-01/html/2021 -10716.htm  
https://www.govinfo.gov/content/pkg/FR -2021-07-01/pdf/2021 -10716.pdf  G/TBT/N/USA/1743  
 
- 2 - 
 
  Documents are available from the FCC at  https://www.fcc.gov/edocs/search -
results?t=quick&dockets=21 -115 
WTO Members and their stakeholders are asked to submit comments to the USA TBT 
Enquiry Point . Comments received by the USA TBT Enquiry Point from WTO Members and 
their stakeholders will be shared with the regula tor (FCC) and will also be submitted to 
the FCC's Electronic Comment Filing System (ECFS)  if received within the comment 
period.  
Comments and other documents posted for this filing (ET Docket No. 21 -115) are 
accessible from the ECFS at 
https://www.fcc.gov/ecfs/search/filings?proceedings_name=20 -115.  
9. Proposed date of adoption:  To be determined  
Proposed date of entry into force:  To be determined  
10. Final date for comments:  Comments are due 2 August 2021. Reply comments are due 
30 August 2021.  
11. Texts available from:  National enquiry point [X] or address, telephone and fax 
numbers and email and website addresses, if available , of other body:   
https://www.govinfo.gov/content/pkg/FR -2021-07-01/html/2021 -10716.htm  
https://www.govinfo.gov/content/pkg/FR -2021-07-01/pdf/2021 -10716.pdf  
https://members.wto.org/crnattachments/2021/TBT/USA/21_4473_00_e.pdf