§ 113. Interstate commerce. The provisions of this chapter shall apply
to employers and employees engaged in intrastate, and also interstate or
foreign commerce, for whom a rule of liability or method of compensation
has been or may be established by the congress of the United States,
only to the extent that their mutual connection with intrastate work may
and shall be clearly separable and distinguishable from interstate or
foreign commerce, provided that awards according to the provisions of
this chapter may be made by the board in respect of injuries subject to
the admiralty or other federal laws in case the claimant, the employer
and the insurance carrier waive their admiralty or interstate commerce
rights and remedies, and the state insurance fund or other insurance
carrier may assume liability for the payment of such awards under this
chapter.