Hearing Loss Compatibility
(HAC & HLC) Testing

RF Safety Lab provides accredited Hearing Aid Compatibility (HAC) and Hearing Loss Compatibility (HLC) testingfor wireless devices supporting US and Canadian regulatory requirements.

Our engineers help manufacturers evaluate devices to FCC Part 20.19, ANSI C63.19, and ISED RSS-HACrequirements and navigate the evolving technical and certification requirements for accessible wireless products.

FCC 47CFR Part 20.19 Testing

FCC Part 20.19 establishes hearing loss compatibility requirements for applicable wireless handsets, with ANSI C63.19 providing the technical measurement framework for evaluating device compatibility.

RFSL supports testing and engineering evaluations for applicable HLC requirements, including:

  • RF interference and acoustic coupling

  • Telecoil coupling

  • Volume control performance

  • Applicable frequency bands and air interfaces

  • Product configuration and test planning

  • Certification documentation and regulatory support

Our team can work with manufacturers early in product development to identify potential HLC issues before formal certification testing begins.

ISED RSS-HAC Testing

RF Safety Lab also supports Canadian ISED RSS-HAC requirements for Hearing Aid Compatibility and Volume Control.

We help manufacturers understand applicable RSS-HAC requirements, develop appropriate test plans, perform the required measurements, and prepare the supporting documentation needed for Canadian equipment certification.

Hearing Loss & HAC Engineering

Hearing loss compatibility requirements are continuing to evolve as wireless technologies and accessibility expectations change.

RFSL combines hands-on laboratory testing with regulatory experience to help manufacturers understand how FCC Part 20.19, ANSI C63.19, and ISED RSS-HAC apply to their products and identify potential compliance issues before they impact certification or market launch.

Whether you are developing a new handset, implementing a new wireless technology, or preparing an existing platform for updated HLC requirements, our team can help develop an efficient path to compliance.