Can I drive….

Nope. 2 different companies even though they are owned by same person.

 

I think you are wrong.

All both companies have to do is keep a driver's jacket at each location and make sure the logs sync. The drug test can be shared between the two, and if one calls for a random, then it applies to both companies.

 

Unless they are both using the same name , they are considered sister / companies. Separate taxes and operations ( according to IRS) . You can own as many as you want , but each is different with its own tax number ( 10 loves with same tax number in 10 states is one company , owned by one owner , that owner can buy joe bobs t/s in another state and start another chain with its own tax number , then they are sister companies ) . They're a lot of different ways to name it but it all comes down to how IRS defines it.
Like Boeing owns it manufacturing plants , then owns it engine company , but both are different companies with separate tax numbers and profits.

 

Carrier can maintain the 391 files and lease the drivers to carrier #2.

When I worked for the US company of a Canadian carrier the driver force was assisted and directed by the local dispatch so we managed the canadians delivering in our area while montreal, etc. handled our drivers north of the border.

We had our own TIN and DOT numbers yet all our upper-level back office including the collection of our revenue was in Canada.

Only hitch was NJ auditing our workmen's comp payments questioned some of their accounting.

 

We do this all the time, and we maintain driver's jackets for those drivers who work between two of my companies. The companies have different names, different tax IDs, and are legal.

The payroll is done with a chargeback between the two companies with a zero-sum gain with either of them.

This has been done in the IT world for decades.

It doesn't have to be complicated or confusing, no law prevents a worker from working for two companies, and there is no FMCSA regulation to prevent it.

 

I think a direct inquiry to the United States Department of Transportation Washington, District of Columbia is indicated here.

 

Yes. The two companies are connected, the management can use one drug test for both companies.

 

Company A sublets to company B based on company A's Part 391 qualification of the individulal(s) they 'lease' to company B.

Since both companies ARE DOT qualified; the interchange of equipment is not a problem and you can bet somewhere company B has paperwork from company A to insure the DOT can easily find the required qualification documents for the drivers in question.

The ability to sublet your drivers is what allowed the regulated days to function with interlines and trip leases with paper door signs masking taped to the door in addition to the 'rites' held by the carrier.