(a) No release from liability.--Nothing in this act shall in any way relieve an employer or supplier from liability with regard to the health and safety of an employee or other persons exposed to any substances, nor shall it relieve an employer or supplier from any other duty or responsibility under any other provision of law.

(b) Construction with Federal law.--This act is to be read in conjunction with any provision of Federal law providing for the identification, labeling or providing of information concerning hazardous substances and is intended to supplement such Federal regulation in the interests of protecting the health and safety of citizens of the Commonwealth.

(c) Local ordinances.--This act shall preempt and supersede any local ordinance or rule concerning the subject matter of this act.

(d) Review of preemption.--Should Federal Government preemption be finally adjudicated and result in lessening the burden on any employer to meet the requirements of this act, it is the intent that the General Assembly reexamine this act so that all employers hereunder shall be reexamined as to requirements necessary in meeting the standards of this act so as to treat all employers fairly and equitably.