Document GVwrxYVzrb18ELZ0Xw6ekM7n

-7- 1. That asbestos brake linings (friction material) may be used in a brake system when the friction material operates in either a dry or oil-wetted environment in a totally enclosed brake compartment which prevents the emission of brake wear products into the ambient air. 2. That asbestos brake linings (friction material) may be used in a brake system, when the friction material operates in a nonenclosed brake compartment, until conclusive medical evidence proves that the emitted brake wear products contain harmful amounts of asbestos fibers. If all evidence indicates the need for asbestos brake controls and/or regulations. Caterpillar would.further recommend that reasonable threshold limits of asbestos fiber be established by qualified personnel (based on scientific fact and foreseeable technological advances). Test procedures which measure the concentration of asbestos fibers must also be developed which are understandable. repeatable, and realistic. Place the burden on the manufacturer to design his product to meet reasonable, attainable standards -- don't just prohibit the use of asbestos for brakes. As mentioned at the beginning of this booklet. Caterpillar Tractor Co. agrees in principle with the objectives of the Environmental Protection Act. The Company stands ready and willing to assist the Board in the establishment of asbestos regulations which serve the intent of the legislation. CAT-1007393 015