(cf s 15 MACA)
A third-party policy does not extend to insure the owner or driver of a
motor vehicle against--
(a) a liability to pay compensation under the Workers Compensation Acts (or any corresponding law of another State or a Territory of the Commonwealth) to a worker employed by the owner or driver, or
(b) a liability which may be incurred by the owner or driver under an agreement unless the liability is one which would have arisen in the absence of the agreement.