As an electronic logging device (ELD) manufacturer, how can I make sure that my product is compliant?

You should review the technical specifications included in the final rule, along with the FMCSA’s compliance test procedures. You are required to self-certify your device, stating that it is in compliance with all of the technical specifications. The compliance test procedures are designed to assist manufacturers in determining whether their product meets the ELD rule requirements. While ELD manufacturers are not required to use FMCSA’s compliance test procedure, they are required to ensure that their products are compliant with the ELD rule.


The Event Checksum Calculation describes the individual items to be included in the calculation. Number 9 says “CMV Number.” Is this the CMV, VIN or the CMV Power Unit Number?

FMCSA showed a CMV number, as an example, in the header output file. The intent was to allow an additional vehicle identification number if an operator had numbered vehicles and chose to add company-assigned numbers to the CMV header data.


Does the registration process require companies to exclusively use FMCSA’s test procedure? Will vendors have access to testing facilities for ELDs?

No. ELD manufacturers may use any test procedure they choose and note this in the registration. FMCSA will not provide a third-party testing service. FMCSA will only investigate devices that are suspected of not conforming to specifications, and will conduct testing with the FMCSA compliance test procedure during its investigation.

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