• Welcome to the new and improved Building Code Forum. We appreciate you being here and hope that you are getting the information that you need concerning all codes of the building trades. This is a free forum to the public due to the generosity of the Sawhorses, Corporate Supporters and Supporters who have upgraded their accounts. If you would like to have improved access to the forum please upgrade to Sawhorse by first logging in then clicking here: Upgrades

Louisiana Plumbing Code


Bronze Member
May 9, 2014
United States
Louisiana's plumbing code is based on an IPC precursor but the 2013 version of the code can be found here: http://laphcc.org/documents/2013LouisianaStatePlumbingcode-Title51.pdf

Additionally, you can see a list of the changes that were made to the code in 2013 here: http://new.dhh.louisiana.gov/assets/oph/Center-EH/engineering/Louisiana_State_Plumbing_Code_2013.pdf

There are a couple of humorous images in the latter link.

Something to note is that Louisiana does NOT permit the use of Air Admittance Valves (AAVs).

In 2013 the allowable distance from trap to vent in a 2" drain was reduced from 8' to 6'.