a. Any public works contract including any subcontract awarded thereunder to any contractor which fails to contain the provisions set forth in sections 2 and 3 of this act shall be null and void; provided that if the award and execution of a contract is subject to Federal regulation requiring inclusion of similar contract provisions the same may be inserted in lieu of those required by sections 2 and 3 of this act, and further provided that nothing contained in this act shall operate to affect in any manner whatsoever any existing federally approved or sanctioned affirmative action program.
b. For any violation of this law in addition to all other penalties allowable by law, the violator shall be subject to a fine of up to $1,000.00 for each violation for each day during which the violation continues, said fine to be collected in a summary manner pursuant to the "Penalty Enforcement Law" (N.J.S. 2A:58-1 et seq.).