For more information, see the ACS Style Guide, pp 320-322.
For specific electronic resources, see the examples corresponding with the same print resources: for instance, for correct formatting of e-books, see the Books examples.
Author, X (if any). Title of Site. URL (accessed Month Day, Year), other identifying information (if any).
National Library of Medicine. Environmental Health & Toxicology. https://www.nlm.nih.gov/enviro/index.html (accessed Feb 04, 2020).
International Union of Pure and Applied Chemistry Home Page. http://www.iupac.org/dhtml_home.html (accessed April 24, 2005).
Author 1; Author 2; etc. Title of Document, Year. Title of Site. URL (accessed Month Day, Year).
Adrian, B.; Dooley, O.; Huang, C.; Levkowitz, M. Tackling Bed Bugs: A Starter Guide for Local Government, 2016. U.S. Environmental Protection Agency Web site. http://npic.orst.edu/pest/bedbug/tacklingbbstarterguide.pdf (accessed Nov 19, 2010).
For more information, see the ACS Style Guide, pp 323-325.
Author 1; Author 2; etc. Program Title, version or edition; Publisher: Location, Year.
If particular data are referenced, include the data entry number or other identifying information at the end of the citation.
Binkley, J. S. GAUSSIAN82, version 1982; Department of Chemistry, Carnegie Mellon University: Pittsburgh, PA, 1982.
SciFinder Scholar, version 2007; Chemical Abstracts Service: Columbus, OH, 2007; RN 58-08-2 (accessed Aug 23, 2007).