The annual amount of the study and professional project allowance, provided for in II of article L. 1511-9 of this code, awarded to students regularly enrolled in studies leading to the award of a veterinary diploma or qualification mentioned in 1° of article L. 241-2 of the rural and maritime fishing code, by local authorities or their groupings, alone or jointly, may not exceed the amount of the gross annual salary of the first step (non-executive student) of the national collective agreement for salaried veterinary practitioners, plus the possibility of covering tuition fees or registration fees paid each year by the student to the training organisation preparing for the diploma.