Article D5212-14 of the French General Code of Local Authorities
The prefect shall set the rate of capital grant increases applicable to the operations provided for in Article D. 5212-10 and selected by him. This rate shall be between 5% and 15% of the amount of the main grant; the total of the increased grant shall not exceed 80% of the amount of the subsidisable expenditure. Within the limit of the allocations made for this purpose in the budget of…