Asphalt Sealants

Green purchasing guidance for asphalt sealants, including:

Required specifications

Purchasers must include these specifications, unless not possible:

RCW 70.295: Stormwater Pollution--Coal Tar prohibits the sale of coal tar sealant products in WA.
EO 20-01: State Efficiency and Environmental Performance (SEEP) states:

“When making purchasing, construction, leasing, and other decisions that affect state government’s emissions of greenhouse gases (GHGs) or other toxic substances, agencies shall explicitly consider the benefits and costs (including the social costs of carbon) of available options to avoid those emissions. Where cost-effective and workable solutions are available that will reduce or eliminate emissions, decision makers shall select the lower-emissions options.”

It further states that “reducing…the use of dangerous toxics in the products state agencies purchase will all have a direct positive effect on human health, particularly for vulnerable children.”
No asphalt sealant products may contain coal tar.

Purchasers should include these specifications, unless not possible:

Vendors are strongly encouraged to offer products that have a third-party verified environmental product declaration (EPD) or health product declaration (HPD).

Purchasers should avoid these specifications whenever possible:

These laws, rules, and executive orders must be included in the contract language:

Find products that meet Washington’s green purchasing specifications:

Use surplus disposal to get rid of items you no longer need. Keep materials out of landfills and make funds for your agency.

Hazardous waste disposal guidelines and options: