Under a city ordinance tentatively approved yesterday, food trucks across Los Angeles, with the exception of those serving the film industry, will soon be required to post letter grades showing how county health inspectors rated their food-handling processes.

County health inspectors already hand out letter grades- A, B, or C- to food trucks in the same way that brick-and-mortar restaurants are evaluated. Those letter grades are

Yesterday’s action by the Los Angeles City Council, which take a final vote on approval today, would require food truck operators to post the grade on their vehicles whenever they are within city limits.

In response to opposition from the Motion Picture and Television Mobile Catering Association, the council declined to require the posting of letter grades by trucks serving the movie and television production industry.

Bruce Hecker, the group’s president, said the industry already has self-regulated food trucks. “Our business model is to contract with a motion picture or television production company,” he said.

“The workers, the unions and the producers demand the highest quality food prepared in a safe way, and if we did not give it to them regularly and regularly pass our county health expectations, we would not be in business.” Terrence Powell of county’s Public Health Department had a different take on it.

“I think the concern, very candidly, is that some operators don’t want to have disclosure and would rather not have that as a public airing of their laundry, if you will,” he told the council.

Ultimately, the council sided with the film industry’s food truck operators. Councilman Paul Koretz said he did not want to make it “more difficult to shoot in Los Angeles.” Councilman Tom LaBonge said: “I’m here to help the movie industry. That’s part of my job. I’m a Hollywood representative. And it’s not hurting the public health. They are being inspected. It’s just about the letter grade being posted.” Assistant City Attorney Valerie Flores said the exemption was “legally defensible.”

“It’s defensible because if the movie industry hires a catering truck to come and service a film location, the filming company is in a very good bargaining position and has the sophistication to ask for the food grading report, the inspection report, so they have a way to ensure that food handling safety standards are going to be met and have been met by the particular operator,” she said.