MY HUSBAND WORKS OUT OF TOWN 5 DAYS A WEEK ALL YEAR. MY FORMER TAXPREPARED SAID HE COULD COUNT 56.00 PER DAY FOR A DEDUCTION IS THIS CORRECT

MY HUSBAND'S JOB REQUIRES HIM TO WORK OUT OF TOWN FIVE DAYS A WEEK.  HIS EMPLOYER PAYS FOR THE MOTEL STAY BUT NOT FOOD.  IS THERE A STANDARD DEDUCTION FOR THIS OR A STANDARD AMOUNT PER DAY?