11.1 Cosmetic Pesticide Ban Rules and the Allowable List

Cosmetic Pesticide Ban Rules and the Allowable List

Quick Answer: Under Pesticides Act section 7.1, no person may use (or cause or permit the use of) an active ingredient in, on, or over land in Ontario for a cosmetic purpose unless that active ingredient is on the List of Active Ingredients Authorized for Cosmetic Uses (Allowable List) or a legal exception applies. The ban targets non-essential land uses; it does not operate the same way for use in water or inside buildings. Federal labels can still list lawn uses that Ontario forbids.

Ontario’s cosmetic pesticides ban is one of the highest-yield legal topics on the OPT&C Core exam. It sits on top of federal registration: a product can be fully legal to sell and use in Canada under a PMRA label and still be illegal for a particular land use in Ontario if that use is cosmetic and the active ingredients are not on the Allowable List.

Statutory core: section 7.1(1)

The Cosmetic Pesticides Ban Act, 2008 embedded the ban into the Pesticides Act, R.S.O. 1990, c. P.11. The operational prohibition is in section 7.1(1):

Subject to subsection (2), no person shall use or cause or permit the use in, on or over land of an active ingredient unless:

1. The Director has determined, in accordance with the regulations, that the active ingredient is appropriate for use for a cosmetic purpose, and
2. The Director has listed the active ingredient in a prescribed document (the Allowable List) published by the ministry and available on a Government of Ontario website.

Key exam words in that rule:

O. Reg. 63/09 fills in the Allowable List machinery (especially sections 17–18) and the detailed exceptions and conditions (sections 16–31). The 2020 amendments to the Act and regulation harmonized Ontario’s class system with federal product classes and eliminated old Classes 7–11, but they kept the cosmetic ban in substance. The former Class 11 list became today’s Allowable List.

What “cosmetic” means

In the Act, cosmetic means non-essential. Ontario guidance explains the policy purpose: protect families and children from unnecessary pesticide risk by allowing only certain low-risk pesticides for controlling weeds and pests on lawns and gardens when the goal is appearance or convenience rather than an excepted purpose (agriculture, public health or safety, and other listed exceptions).

Classic cosmetic land uses include, but are not limited to:

• Controlling weeds on lawns (for example dandelions or clover for appearance)
• Pest control on gardens, patios, walkways, and driveways for non-essential reasons
• Similar appearance-driven treatments in parks and around the home when no exception applies

If the only reason for the treatment is that the lawn “looks better” or weeds are aesthetically undesirable, treat the use as cosmetic unless every active ingredient is on the Allowable List.

Scope: land vs water vs buildings

The ban applies to pesticide use that is in, on, or over land. Accordingly:

• Land uses (lawns, landscapes, roadsides when cosmetic, ornamental beds, driveways, and similar) are the ban’s core territory.
• Use in water is not governed by the cosmetic ban the same way (other licence, permit, and label rules still apply).
• Use inside buildings is likewise outside the cosmetic land-use ban (structural/exterminator rules and the label still apply).

Exam trap: do not say “the ban bans all pesticides in Ontario.” Say: it bans non-essential active-ingredient use in, on, or over land unless the Allowable List or an exception applies.

Federal label vs Ontario ban

PMRA-approved labels are legal documents for how a product may be used federally (sites, pests, rates, PPE). Labels do not list Ontario cosmetic-ban exceptions or Ontario-only prohibitions. Therefore:

1. Some labelled uses are allowed in Ontario (Allowable List actives for cosmetic use, or excepted non-cosmetic uses).
2. Some labelled uses are prohibited in Ontario even though they appear on the federal label—especially lawn weed control with non-Allowable actives.
3. Some products have mixed labels: a health-and-safety use (allowed under an exception) plus a lawn cosmetic use (banned). Sale of such Class D products may be restricted as controlled sales pesticides with handout requirements; use of the banned purpose remains illegal.

Rule of analysis for every scenario:

1. Is the use in, on, or over land?
2. Are all active ingredients on the current Allowable List?
3. If not, does a section 7.1(2) / O. Reg. 63/09 exception apply, and are prescribed conditions met?
4. Does the federal label authorize that pest/site use at the intended rate?
5. Does the applicator hold any required licence, exemption, or permit?

You need yes answers through this chain. A yes on the federal label alone is not enough.

The Allowable List

The Act authorizes a published list of active ingredients that may be used for cosmetic purposes: the List of Active Ingredients Authorized for Cosmetic Uses (Allowable List) (O. Reg. 63/09 section 18 and related rules).

Current version candidates should know

Ontario’s public materials identify Allowable List Version 5, effective November 28, 2022, as the current version referenced on ontario.ca at the time of this study guide’s content refresh. Always verify the live list on ontario.ca before a real-world application—the ministry updates the list when actives are added or removed, and exam/professional practice both expect current-list awareness.

How the list works in practice

• Active ingredients appear on the federally approved product label.
• Compare every active ingredient on that label to the Allowable List.
• If all actives are on the list, the product may be used for cosmetic purposes in, on, or over land (subject still to the label and any other provincial rules).
• If any active is not on the list, cosmetic land use of that product is prohibited unless an exception applies.
• Products containing only Allowable List actives may be used by anyone for cosmetic lawn/garden/driveway/park/home-area purposes consistent with the label.

At the time of the 2020 amendments, actives on the Allowable List matched the former Class 11 list. Class 11 as a numeric class was eliminated, but the low-risk cosmetic-use concept remained as the Allowable List.

Criteria for listing (low-risk / biopesticide concept)

Section 17 of O. Reg. 63/09 directs the Director’s determination of whether an active ingredient is appropriate for cosmetic use. In simplified exam language:

An active is appropriate for cosmetic use only if it is in a Class C or D pesticide whose label indicates at least one use that is not an excepted use under section 7.1(2), and the Director is satisfied that the active is either:

1. A biopesticide (as understood through PMRA definitions—for example microbials, pheromones/semiochemicals in the ministry’s framework), or
2. An active that poses a low risk to human health and the environment based on factors such as:
   • low inherent toxicity to non-target organisms
   • low potential for significant human or environmental exposure from product use
   • not persistent in the environment
   • widely available to the public with a history of safe non-pesticide use
   • a mode of action that is not toxicity to the target organism (for example physical or other non-toxic modes)

Ontario guidance ties this approach to PMRA’s treatment of biopesticides and non-conventional / lower-risk products (including DIR2012-01 concepts). Conventional pesticides registered only under conventional pathways are not expected to land on the Allowable List. Historical “Class 11-type” characteristics also included non-toxic modes of action, low non-target toxicity, limited persistence, use patterns that limit exposure (for example ready-to-use formats), and long public availability for other uses.

Getting actives onto the list

• Applications are not required as a matter of course; as PMRA registers new products, the Director may consider section 17 criteria.
• A registrant (or Canadian agent) who believes an active meets the criteria may request Director consideration (subsection 17(2)).
• Add/remove decisions are subject to Environmental Registry posting (typically a 30-day consultation period).
• A product containing the active must be PMRA-registered before a decision to include the active can be posted.
• After a decision notice, the Allowable List on ontario.ca is updated.

Do not memorize every chemical name for Core. Memorize the decision rule: cosmetic land use → all actives on current Allowable List or exception + conditions + label + licence pathway.

Licensed exterminators and the ban

Licensed exterminators buy and use primarily Class B and C products that may not be on the Allowable List. That purchase authority does not create a cosmetic free pass. Ontario guidance is explicit: licensed exterminators must understand the ban, the Allowable List, and the exceptions, and must not apply non-Allowable actives for banned cosmetic land uses.

Practical implications:

• A Landscape-class exterminator treating a residential lawn for ordinary weeds with a non-Allowable herbicide is generally in violation, even if the federal label lists lawn weeds.
• The same exterminator may use non-Allowable products when a true exception applies (for example certain public-health pest control, structural-integral land uses, golf under prescribed conditions)—always with label authority and any IPM certification, reporting, signage, or permit conditions the regulation requires.
• When written notice of a land extermination is required for a non-Allowable pesticide, notice rules can require describing which cosmetic-ban exception applies.

Sale side reinforces the use ban

Although this section focuses on use, Core candidates should connect sale rules:

• Class D products with non-Allowable actives and only cosmetic land uses may be prohibited for sale in Ontario entirely.
• Multi-use Class D products can be controlled sales pesticides (licensed vendor + customer handout explaining allowed vs banned uses).
• Products with only Allowable List actives are generally always allowed for sale for cosmetic purposes.

If a product cannot legally be used for the customer’s intended cosmetic purpose, do not apply it “because they bought it.” Use and sale rules work together.

Worked decision examples

Example A — Dandelions on a home lawn. Homeowner wants a Class C or D herbicide whose active is not on the Allowable List. Use is in/on land, purpose is non-essential appearance. Banned for that purpose. Switch to an Allowable List product (label-compliant) or non-chemical control.

Example B — Same lawn, Allowable List product. All actives on the current Allowable List; label allows lawn weeds. Allowed for cosmetic use by homeowner or licensed applicator (still follow label PPE/rates).

Example C — Product labelled for lawns and for wasps. Non-Allowable active. Lawn cosmetic use remains banned; wasp control may fall under a public health or safety exception if regulation conditions and label uses line up. Do not “borrow” the wasp exception to justify lawn spraying.

Example D — Indoor cockroach treatment. Use inside a building is not the cosmetic land ban; structural licensing/label rules govern.

Exam focus points

• Define cosmetic as non-essential and locate the ban in Pesticides Act s. 7.1 with detail in O. Reg. 63/09.
• State the two green lights for cosmetic land use: Allowable List or exception.
• Scope: in, on, or over land; not the same for water or inside buildings.
• Federal label listing ≠ Ontario permission for banned cosmetic uses.
• Licences do not override the cosmetic ban.
• Know Allowable List Version 5 (effective November 28, 2022) as the public current version to cite, and that candidates must check ontario.ca for updates.
• Recall low-risk/biopesticide listing criteria concept (section 17 factors), not a random list of brand names.

Master this decision framework before section 11.2, which maps the statutory and prescribed exceptions that take a land use out of the “cosmetic only” box.