Explainer

Lead ammunition restrictions are among the most misunderstood rules in hunting, largely because several different rules with different scopes get discussed as one.

Waterfowl: the long-standing federal rule

Non-toxic shot has been required for waterfowl hunting nationwide since 1991. That is a federal requirement under migratory bird regulations, and it is why steel and other non-toxic loads are standard in duck and goose hunting.

It applies to waterfowl. It has never applied to upland birds or big game generally, which is where much of the confusion begins.

State-level restrictions

Some states impose broader non-lead requirements, often geographically. California’s restrictions, tied originally to condor range and later extended, are the most commonly discussed.

These vary in scope — some cover all hunting, some specific species, some specific areas — and they change. A state-level rule is not inferable from the federal one.

Land-specific rules

Individual national wildlife refuges and some state wildlife areas set their own ammunition requirements as a condition of hunting there.

This is easy to miss because the rule attaches to the property rather than the state or species. A hunter can be entirely compliant with state law and non-compliant on the refuge they are standing on. The station-specific refuge regulations are where those conditions live.

The underlying issue

The concern driving these rules is secondary ingestion — scavenging birds consuming lead fragments from carcasses and gut piles. Raptors and condors are the species usually cited.

There is genuine scientific literature on fragmentation and on lead exposure in scavengers, and there is genuine disagreement about the scale of population-level effect and about the cost and ballistic trade-offs of alternatives. Both of those can be true at once, and the regulations reflect where individual agencies have come down.

Practically

Check three levels: the federal rule for the species, the state rule for the area, and the specific property’s rules if you are on public land with its own conditions.

Non-lead ammunition also behaves differently — different densities and expansion characteristics mean sighting-in with what you will hunt with is not optional.

This article was researched and drafted with the assistance of AI tools and reviewed, fact-checked and edited by Leonidas Clark before publication. It is general information, not legal advice. Confirm current rules with the relevant agency.