La. Stat. tit. 49 § 316
All banks selected as fiscal agents or depositories for the deposit of funds belonging to the state, or any state agency, shall pay at par and receive on deposit at par all checks and drafts drawn by or in favor of the state or state agency. The bank or banks chosen under a request for proposal process to enter into an agreement to act as the central depository bank may charge such reasonable fees for services rendered to the state treasurer's office as may be agreed upon from time to time. The state or any agency may elect to pay for services rendered either through compensating balances or through the assessment of service or activity charges, or any combination thereof, as may be agreed upon by the state or state agency and the fiscal agent or depository bank.
La. R.S. § 49:316