How do I determine what regulated hourly rate I should pay a company driver?

From the Rate Order of the Commissioner (effective April 1, 2020)

Hourly Rate
$26.30 per hour if a directly employed operator has performed less than, and $27.50 per hour if a directly employed operator has performed more than (or equal to), 2340 collective hours of container trucking services for any licensee or licensees (hourly rates are inclusive of benefits)

Callout
No less than 4x the applicable hourly rate if a directly employed operator agrees, at the request of a licensee, to be available to perform container trucking services for 4 or more continuous hours in a 24-hour period