Philadelphia Worker and Community Right-to-Know Act
The Philadelphia Worker and Community Right-to-Know Act requires employers that use any of 450 chemical substances to file Material Safety Data Sheets with various local government agencies. (An additional list of 99 chemicals will trigger the filing requirement if they are emitted from the workplace.) Material Safety Data Sheets must be made available to the public, upon request, through the governmental agencies where they are filed. Containers of these chemicals must be clearly labeled. (This was the first municipal right-to-know law.)
Cry Wolf Quotes
It would require us to mail out forms and get information on 450 or more chemicals from 7,500 firms. We think that would require another 15 people [and $300,000 more in costs].
[The right-to-know law is] a sop to a small group of people that I would call ‘overreactors’ I know it’s going to cost a business a helluva lot of money.
I feel that the sponsors and endorsers of Bill 270 have been "taken in" by the spurious and irresponsible claims of its drafters. I very much fear that those drafters are motivated by a "zero-risk" philosophy which is impossible to achieve….Not only is it unnecessary, but attempting to achieve "zero-risk" can destroy business and commerce.
Then without regard for exposure concentration in the air, City Council is being asked to make it against the law to ‘receive, store, use manufacture or transport’ any substance on that list without first burdening the citizen and the City Administration with more red tape.
Backgrounders & Briefs
Dying To Know: A Historical Analysis of the Right-To-Know Movement
This survey provides a sweeping analysis of the right-to-know movement in America.

