Indiana Code
Chapter 19. Mandatory Coding of Plastic Containers
13-20-19-2. Requirements of Coding

Sec. 2. Each bottle and plastic container described in section 1 of this chapter must be coded. The coding must consist of a three (3) sided triangular arrow with a number in the center and letters underneath. The number and letters must indicate the resin from which the container is made as follows:
(1) One (1) and "PETE" for polyethylene terephthalate.
(2) Two (2) and "HDPE" for high density polyethylene.
(3) Three (3) and "V" for vinyl.
(4) Four (4) and "LDPE" for low density polyethylene.
(5) Five (5) and "PP" for polypropylene.
(6) Six (6) and "PS" for polystyrene.
(7) Seven (7) and "Other" for other materials, including multi-layer materials.
[Pre-1996 Recodification Citation: 13-7-22-1(b).]
As added by P.L.1-1996, SEC.10.