# COMAR Title 26 — Department of the Environment

## Subtitle 13 — Disposal of Controlled Hazardous Substances

### Chapter 02 — Identification and Listing of Hazardous Waste

#### Regulation .04-2 Hazardous Wastes Which Are Exempt from Certain Regulations.

*COMAR 26.13.02.04-2*

A hazardous waste which is generated in a product or raw material storage tank, a product or raw material transport vehicle or vessel, or in an associated nonwaste-treatment manufacturing unit, is not subject to regulations until it exits the unit in which it was generated, unless the unit is a surface impoundment, or unless the hazardous waste remains in the unit more than 90 days after the unit ceases to be operated for manufacturing, or for storage or transportation of products or raw material.