Product Hazard Tier Ratings

The PestSmartTM and PRI Pesticide Product Evaluator tools use the LEED-compliant  San Francisco Hazard Tier Rating system to assign a Hazard Tier ranking to pesticide products. Formulated products and their active ingredients are evaluated on the basis of acute and chronic toxicity to humans, wildlife and aquatic life, as well as potential for water contamination. The product Hazard Tier rankings allow consumers to make informed decisions and building managers and LEED APs to quickly assess a pesticide product for its eligibility for use in a LEED-certified Integrated Pest Management (IPM) program. Credit for Green Cleaning-Indoor Integrated Pest Management (EBOM SSc3 and IEQc3.6) is given for utilizing IPM methods for pest management, and limiting pesticide use to least-toxic (Hazard Tier III) pesticide products

Hazard Tier Rankings

Tier 1  Highest concern 

The formulated product has a DANGER signal word on the label because of high acute toxicity, is listed by US EPA as a Restricted Use Product (RUP), and/or is highly toxic to fish or other aquatic life, birds, wildlife, or honey bees. Alternatively, one or more of the known ingredients in the product meets at least one of the following criteria: Known or probable carcinogen, reproductive or developmental toxicant, suspected endocrine disruptor, persistent bioaccumulative toxic substance, or listed as a non-point source water pollutant on the Clean Water Act Section 303(d) list.

Tier 2  Moderate concern

The formulated product has a WARNING signal word on the label because of moderate acute toxicity and/or is moderately toxic to fish or other aquatic life, birds, wildlife, or honey bees. Alternatively, one or more of the known ingredients in the product is not a Hazard Tier 1 ingredient, but meets at least one of the following criteria: Possible carcinogen or potential ground or surface water contaminant.

Tier 3  Low concern

The formulated product has a CAUTION or no signal word on the label because of low acute toxicity and/or has no warnings about toxicity to fish or other aquatic life, birds, wildlife, or honey bees. For the known ingredients in the product, no hazard criteria are flagged for Tier 1 or Tier 2.

 Not Yet RatedNot Yet Rated

The product has not yet been subject to a comprehensive review by PRI. Based on the properties of the active ingredient alone, a Hazard Tier rating has been assigned to approximately 10,000 products, out of a total of more than 18,000 products. Full reviews that include assessment of the label and MSDS have been done on over 2,000 products to date, with hundreds more being added every month. Initially, PRI has prioritized the review of pesticide products used in structural, landscape, and turf pest management, as well as invasive weed management work. Agricultural use pesticides will be reviewed later this year. We are also working to incorporate exempt products containing only minimal risk ingredients and have approximately 50 of these products currently in the database.

The database behind the PRI Product Evaluator includes all end-use products currently registered by US EPA (~14,000 products), excluding technical grade products and those used as formulation intermediates. Also included in the database are products that were recently cancelled, going back five years (~4,000 products) to help those who wish to find out hazard information on older products purchased in the past.

Request a Hazard Tier evaluation by emailing PRI at support@pesticideresearch.com

For more information, contact us.

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