Versions of Louisiana Civil Code 2437 - Periodic allowance. on LawServer 2023 Louisiana Civil Code 2437 – Periodic allowance. 2022 Louisiana Civil Code 2437 – Periodic allowance. 2021 Louisiana Civil Code 2437 – Periodic allowance. 2020 Louisiana Civil Code 2437 – Periodic allowance. 2019 Louisiana Civil Code 2437 – Periodic allowance.