A California-based chemical manufacturing company is suing the federal government for $2 billion in the latest installment of the industry’s long-running lawsuit over the safety of the toxic chemical known as chlorpyrifos.

The chemical maker filed its lawsuit Wednesday in the U.S. District Court for the Southern District of California in San Francisco.

The suit, filed on behalf of several other chemical manufacturers and other parties, was brought on behalf by the United States Environmental Protection Agency, the American Chemical Society and the American Association of Retired Persons.

The EPA is investigating whether the company knowingly failed to warn its workers about the chemical’s potential for cancer and birth defects, as well as to properly label the chemical.

The lawsuit alleges the company did not warn its employees about its toxicity and that it knowingly failed in its duty to warn about the cancer-causing potential of the chemical, which is the key ingredient in many pesticides and fungicides.

The plaintiffs in the suit say the chemical has a history of causing serious harm to human health and the environment.

The case has been ongoing for more than a decade and is the latest in a series of lawsuits alleging that the chemical is unsafe for the general public.

The suits were filed under a 1998 law that established the National Institute for Occupational Safety and Health, which investigates workplace health hazards.

The company behind the suit, the National Toxicology Program, is based at the University of Texas Health Science Center at San Antonio.

The agency has been accused of conducting a politically motivated investigation into the company.

The National Institute of Occupational Health and Safety has been sued for failing to protect its employees from a potentially deadly chemical that has been used for decades to spray pesticides in the United State and other countries.

The chemicals used to spray insecticides were known as “Pyrro” and “Tetrachlorpyriferol.”

These chemicals were first marketed in the 1940s and 1970s.

They were later found to have an adverse effect on the reproductive system and the nervous system, among other diseases.

The FDA has also said the chemicals are not approved for use in human health.

The Chemical Manufacturers Association, the industry group representing chemical makers, said it is concerned with the lawsuit and would continue to defend the safety and efficacy of chlorpyrs in a legal battle with the EPA.

“We are disappointed that the court has sided with the companies, but the law does require the EPA to do its job, which means that they have a responsibility to protect the public,” said Chris O’Neill, the group’s executive director.

The industry group also said that its members are committed to working with the administration on health issues related to chlorpys.

The groups suit argues that the government cannot force the companies to make significant changes to their products, and that the companies have a legal obligation to provide workers with the proper safety training.

The Associated Press contributed to this report.