NY S07474

Creates a new legal cause of action allowing individuals exposed to toxic substances to sue for medical monitoring costs, even without a current injury or disease

Requires plaintiffs to prove by preponderance of evidence: possible exposure from an unauthorized release, probable link between exposure and latent disease, increased risk of developing the disease, and that diagnostic testing is reasonably necessary

Defines "toxic substance" to include chemicals classified as hazardous by the EPA or Agency for Toxic Substances and Disease Registry, substances designated by the state commissioner, or substances proven toxic through evidence

Permits class action certification for medical monitoring claims and preserves all other existing civil remedies, including future claims if a latent disease actually manifests

Establishes statute of limitations matching existing toxic exposure rules under CPLR 214-c, or within one year of the act's effective date, whichever is longer