Regulacje i polityka gospodarcza · 22.09.1999

Proposed Test Guidelines; Extension of Comment Period

On July 28, 1999, EPA issued a notice announcing the availability of a combined chronic toxicity and carcinogenicity test guideline for the Series 870-Health Effects Test Guidelines for use in the testing of fibrous particles in the development of test data (OPPTS 870.8355). Natural and synthetic fibers are one group of substances that have been identified to be of potential health concern to humans. The comment period would have ended September 27, 1999. Due to the complexity of the proposed test guideline and the potential health concerns to humans, EPA has decided to extend the comment period by 45 days.