SOUTH PORTLAND — Two dozen Maine moms are joining a demonstration in Washington, D.C., to call for an update of federal law governing chemicals in every day products.

The Mainers are joining a “stroller brigade’ on the lawn of the U.S. Capitol on Tuesday. They’re bringing with them 2,572 petitions and a resolution signed by state Senate President Kevin Raye and House Minority Leader Emily Cain that call on Congress to modernize the Toxic Substances Control Act of 1976.

Megan Rice, a mother of two from China, Maine, says she’ll be asking Maine’s congressional delegation if they stand with Maine families or with the chemical companies.

The group hopes to build support for the Safe Chemicals Act of 2011, which is due to be considered in committee later this month.