d-CON guide

What EPA rules mean for the mouse bait you can buy

Mouse bait on a store shelf today looks nothing like the loose pellets of years past, and federal rules are the reason. Knowing what those rules allow helps you read a package, pick a station and use it the way the law expects.

Why consumer mouse bait now comes in stations, why loose pellets are gone, what happened to older d-CON products, and what EPA has proposed next.
Why consumer mouse bait now comes in stations, why loose pellets are gone, what happened to older d-CON products, and what EPA has proposed next.

Key points

  • Consumer bait comes only in ready-to-use stations, as blocks or paste. Pelleted bait is no longer permitted in consumer products.
  • Four second-generation anticoagulants are sold only to professionals, not to households.
  • In November 2022 EPA proposed prohibiting refillable stations for consumer-sized products. It is a proposal, not a rule.
  • The label is the law: using a product in a way its label does not allow breaks federal law.

What a household can buy: bait inside a station

EPA allows rodenticide products on the consumer market only as ready-to-use bait stations that contain or come with bait in block or paste form. Pelleted baits are no longer permitted in products for consumers, and loose bait forms are gone from the shelf with them.

The amount is capped as well. No consumer product may hold more than one pound of poison, and a refillable station may be packaged with up to one pound of refill bait. A station that is not refillable is thrown away once its bait is eaten or contaminated.

Both shapes sit on our shelf of d-CON bait stations. The refillable Corner Fit station comes with refill blocks that click into its cartridge, and the disposable Corner Fit station arrives filled and is never opened.

Either way the bait stays inside the station. The spare blocks in the bag are for the cartridge, not for the floor, and a loose block set out on its own is exactly what the consumer rules are meant to prevent.

A d-CON Refillable Corner Fit pack: one station shown with a heap of green refill blocks, bait in block form inside a station.
A d-CON Refillable Corner Fit pack: one station shown with a heap of green refill blocks, bait in block form inside a station.

Why the strongest baits went to professionals

Four second-generation anticoagulants are no longer registered for consumer products: brodifacoum, bromadiolone, difenacoum and difethialone. EPA lets commercial and structural pest control companies keep using them, including inside homes.

Bromadiolone shows how that split works. It was first registered in the United States in 1980. The National Pesticide Information Center says its products are now intended only for sale to professionals, to cut down on accidental poisoning of children and wildlife.

Wildlife and pets are part of the reason. EPA notes that they can be poisoned by eating rodents that consumed bait. UC IPM adds that a dead rat can hold several lethal doses, so a pet or a wild animal that eats one is at risk too.

Which active ingredient a given consumer station holds is printed on its label, and the label is the place to read it. Households that would rather keep poison out of the picture have another route. Our d-CON mouse traps are mechanical and hold no bait poison, only the food you add.

When the rules took effect

EPA set these limits in its 2008 risk mitigation decision. The agency gives that year but no single date for when the new products reached store shelves.

Two university programs fill in that date. UC IPM writes that federal rules in effect since mid-2011 let manufacturers sell the general public only wax block, gel or paste baits packaged in or with ready-to-use stations. The University of Nebraska-Lincoln Extension puts the start of the stricter consumer rules at June 4, 2011. UC IPM adds that EPA restricted retail sale of second-generation anticoagulants at that time.

The Nebraska guide also describes the four tiers of bait stations that came with those rules, sorted by how well a station resists children, dogs and weather. Depending on its tier, a station is labeled for indoor use, or for indoor use and outdoor use within 50 feet of buildings.

The same publication sums up PR Notice 94-7, the older EPA notice behind the word tamper-resistant on a label. Among other things, such a station must resist dogs and children under 6 and be anchored when used.

Consumer mouse bait rules, year by year
WhenWhat changedWho says so
2008EPA risk mitigation decision sets the rules for consumer baitEPA
Mid-2011Federal rules in effect: blocks, gels or pastes in or with ready-to-use stationsUC IPM
June 4, 2011Stricter consumer rules start, with four tiers of bait stationsUniversity of Nebraska-Lincoln Extension
December 31, 2014Production of 12 older d-CON products stopsEPA
January 1, 2015All registered consumer rat and mouse poisons conform to the 2008 decisionEPA
March 31, 2015Distribution of those 12 products to stores endsEPA
November 2022EPA proposes further measures, including no refillable stations in consumer-sized productsEPA

What happened to older d-CON products

EPA reached an agreement with Reckitt Benckiser to cancel 12 d-CON rat and mouse poison products that did not meet its safety standards. All 12 were sold without a protective bait station, and 8 of them contained second-generation anticoagulants.

Production of those products stopped on December 31, 2014. Distribution to stores ended on March 31, 2015. From January 1, 2015, EPA says, all registered consumer rat and mouse poisons conform to its 2008 decision.

Old product sometimes turns up on a garage shelf years later. EPA asks that leftovers go through a local waste program and never outdoors, into a sink or down a toilet. The d-CON Corner Fit stations in our catalog are bait stations of the kind the current rules describe.

Three packs of the d-CON Corner Fit refillable station, each with a station and green refill blocks.
Three packs of the d-CON Corner Fit refillable station, each with a station and green refill blocks.

What EPA has proposed for refillable stations

In November 2022 EPA proposed further measures for rodent control products. One of them would prohibit refillable bait stations for consumer-sized products. It is the next step in the same EPA process that produced the 2008 decision. Its aim has not changed: to limit how much children and pets come in contact with poison.

EPA has proposed the change, and a proposal is not a rule. Refillable consumer stations remain on sale while the proposal stands, and the label on each package still sets how it may be used.

If you own a refillable station, the proposal does not change how you use it today. Load one block at a time into its cartridge, keep the rest of the blocks in their closed bag away from children and pets, and follow the label. Side by side, the two station types differ mainly in what happens when the bait runs out. A disposable station goes in the trash whole when its bait is gone, so nothing in the house waits to be refilled.

Stations and traps compared, prices from our last catalog update
ProductWhat it isFromBuy
Refillable Corner Fit Mouse Bait StationA reusable bait station with refill blocks in the box$0.75 per refill
Disposable Corner Fit Mouse Bait StationA sealed station already filled with bait$2.52 per station

The label is the law

Every pesticide label carries a statement that using the product in a manner inconsistent with its labeling violates federal law. EPA sums that up in four words: the label is the law. Under FIFRA, labeling also covers printed matter that comes with the product or that the label refers to.

The label turns what EPA found into conditions printed on the package. It says who may use the product, and where, how, how much and how often. A station sold for indoor use stays indoors.

The refillable d-CON Corner Fit station is a case in point. Its package description calls it weather-resistant for indoor or outdoor use, and the label sets the terms. Under EPA rules, outdoor use of a consumer station reaches only as far as 50 feet from buildings, and only for a station labeled for it.

Spacing and checking come from the same kind of guidance. The Nebraska extension advises placing house mouse stations no more than 12 feet apart, along walls and travel routes, and checking them daily at first. It also says to dispose of a single-use station and its contents as the label directs.

Read the package before you set a station down. The guide on where to put a mouse bait station works through rooms, and using mouse bait in a home with kids and pets covers storage and who to call.

Questions

Questions about epa rules for mouse bait

Why can you no longer buy loose d-CON pellets?

EPA rules allow consumer bait only in ready-to-use stations, as blocks or paste. Pelleted baits are no longer permitted in consumer products.

Is your refillable d-CON station banned?

No. In November 2022 EPA proposed prohibiting refillable stations for consumer-sized products, but a proposal is not a rule. Follow the label on your package.

What should you do with an old d-CON product you find in the garage?

EPA asks that leftover rodent poison go through a local waste program, never outdoors, into a sink or down a toilet.

Can you buy second-generation anticoagulant bait to use alongside your d-CON stations?

No. EPA no longer registers brodifacoum, bromadiolone, difenacoum and difethialone for consumer products. They are sold to commercial and structural pest control only.

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