---
kind: "range"
citation: "40 C.F.R. §§ 63.402–63.403"
title: "40"
from: "63.402"
to: "63.403"
count: 2
url: "https://uscodex.org/cfr/40/63.402..63.403"
---

# §63.402. Standard.


No owner or operator of an IPCT shall use chromium-based water treatment chemicals in any affected IPCT.


# §63.403. Compliance dates.


The requirements of [§ 63.402](/cfr/40/63.402.md) of this subpart shall be applied on the following schedule:

- (a) For existing IPCT's, the compliance date shall be 18 months after September 8, 1994.
- (b) For new IPCT's that have an initial startup before September 8, 1994, the compliance date shall be September 8, 1994.
- (c) For new IPCT's that have an initial startup on or after September 8, 1994, the compliance date shall be the date of the initial startup.