"Who knows how much inventory these companies have? But they were concerned enough about it to contact the CPSC and say, 'What are we supposed to do with our existing inventory?" Hitchcock said.
The CPSC's decision this week prompted concerned lawmakers to write a letter to the commission asking it to reconsider.
On Monday, lawmakers Dianne Feinstein, D-Calif., Henry Waxman, D-Calif., and Janice Schakowsky, D-Ill. wrote to acting CPSC chairman Nancy Nord and CPSC commissioner Thomas Hill Moore calling the decision on phthalates "directly contrary to the plain language" of the law.
Vallese told ABCNews.com Tuesday that "The commission may be willing to work with Congress to have additional or new or clarifying language."
Still, she said, "The legislation, by using the word standard, makes it difficult for the agency to find any other way to enforce the law."