The association represents makers of planes including corporate jets, small personal aircraft and commuter planes with 19 or fewer seats, but not larger commercial airliners.

The regulations have also been strongly criticized by trade groups representing makers of and dietary supplements and grocery and health-food stores.

Nor would it preclude him from involvement with smaller trade groups like those representing makers of home appliances and children's products that have alliances with the association.

Even the Calorie Control Council, which represents makers of commercial diet foods, notes that the percentage of people who are dieting has declined - to 29% in 2007 from 33% in 2004.

Or at least that's what the Sugar Association, the trade group that represents makers and marketers of sugar, is urging consumers to do in a new print campaign that begins later this month.

The Pharmaceutical Manufacturers Association, which represents makers of brand-name drugs, said it did not perceive a problem in the F.D.A.'s ability to learn whether companies misrepresented or failed to report data.

Behind Kessler, in the audience, sat the private sector itself, a blue-suited battalion of lobbyists representing the drug and medical-device industries, food-additive and dietary-supplement makers, grocery and tobacco conglomerates.

The format was developed by the Blu-ray Disc Association, a group representing makers of consumer electronics, computer hardware, and motion pictures.

But she said the changes sounded like those proposed in November 1995 by the association, which represents most makers of over-the-counter drugs.

National companies have spent decades winning the trust of consumers, said Stephanie Childs, a spokeswoman for the Grocery Manufacturers Association, which represents makers of national brands.