Execution of maritime liens

No maritime lien shall attach to a vessel to secure claims set out in section 63 (b) and section 63 (f) of this Act, which arise out of or result from, (i) damage in connection with the carriage of oil or other hazardous or noxious substances by sea for which compensation is payable to the claimants pursuant to international conventions or national law providing for strict liability and compulsory 43 insurance or other means of securing the claims; or (ii) radioactive properties or a combination of radioactive properties with toxic, explosive or hazardous properties of nuclear fuel or of radioactive products or waste.