40 CFR § 59.506 - How do I demonstrate compliance if I manufacture multi-component kits?

---
identifier: "/us/cfr/t40/s59.506"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 59.506 - How do I demonstrate compliance if I manufacture multi-component kits?"
title_number: 40
title_name: "Protection of Environment"
section_number: "59.506"
section_name: "How do I demonstrate compliance if I manufacture multi-component kits?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "59"
part_name: "NATIONAL VOLATILE ORGANIC COMPOUND EMISSION STANDARDS FOR CONSUMER AND COMMERCIAL PRODUCTS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7414 and 7511b(e)."
regulatory_source: "64 FR 48815, Sept. 11, 1998, unless otherwise noted."
cfr_part: "59"
---


# 59.506 How do I demonstrate compliance if I manufacture multi-component kits?

(a) If you manufacture multi-component kits as defined in § 59.503, then the Kit PWR must not exceed the Total Reactivity Limit.

(b) You must calculate the Kit PWR and the Total Reactivity Limit as follows:

(1) KIT PWR = (PWR<sub>(1)</sub> × W<sub>1</sub>) + (PWR<sub>(2)</sub> × W<sub>2</sub>) + . ... + (PWR<sub>(n)</sub> × W<sub>n</sub>)

(2) Total Reactivity Limit = (RL<sub>1</sub> × W<sub>1</sub>) + (RL<sub>2</sub> × W<sub>2</sub>) + ... + (RL<sub>n</sub> × W<sub>n</sub>).

(3) Kit PWR ≤Total Reactivity Limit.

Where:

W = the weight of the product contents (excluding container).

RL = the PWR Limit specified in Table 1 of this subpart.

Subscript 1 denotes the first component product in the kit.

Subscript 2 denotes the second component product in the kit.

Subscript n denotes any additional component product.