Comment on our new home page design - Learn about the features of our new design and let us know what you think.

View frequent questions or ask a question - Search FAQs or submit your own question or comment in EPA's Frequent Questions Database. If you still can't find what you're looking for, you can also view questions and answers on specific topics and EPA programs.

Comment on EPA regulations - Our proposed regulations are almost always open to the public for comment. You may comment on them in several ways. Each rule tells you how in its "Addresses" section.

Call or e-mail a hotline - View phone numbers and Web sites for assistance with your questions.

Find a mailing address

Locate an EPA employee - Identify EPA employees by name and location. EPA Directory Assistance is available by calling (202) 272-0167.

Access our libraries - Our librarians can help you get information about the environment and related scientific, technical, management, and policy information.