Restricted noxious weed seeds

Cal. Code Regs. Tit. 3, § 3855 – Restricted Noxious Weed Seed

Unless listed in CCR Section 3854 as a prohibited weed seed, all seeds from plant species listed in CCR Section 4500 are considered to be restricted weed seeds for purposes of labeling seed containers offered for sale, planting, or distribution in California.


Note: Authority cited: Sections 407 and 52332, Food and Agricultural Code. Reference: Sections 5004, 52256, 52257, 52258, 52287 and 52332, Food and Agricultural Code.

1. Amendment filed 12-21-77 as an emergency; designated effective 1-1-78 (Register 77, No. 52). For prior history, see Register 77, No. 31.
2. Certificate of Compliance filed 1-6-78 (Register 78, No. 1).
3. Amendment of section and Note filed 10-11-2010; operative 11-10-2010 (Register 2010, No. 42).
4. Repealer and new section filed 8-8-2017; operative 10-1-2017 ( Register 2017, No. 32 ).

The following state regulations pages link to this page.

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.

Prohibited and Restricted Noxious Weed Seeds

Michigan law regulates the sale, advertising, or transport of certain noxious weeds. Noxious weed seeds are generally considered to be serious nuisances or economically detrimental and are divided into two categories. Prohibited noxious weed seed cannot be sold or transported in the state. Restricted noxious weed seeds are only permitted when strict limits on the percentage or number of such seeds found in any lot of seed are observed.

The various Acts and Regulations that pertain to the sale or transport of seed consisting of or containing noxious weeds are summarized below:

A complete list of the prohibited and restricted noxious weed seeds covered by Regulation 715 follows:

The number of restricted noxious weed seeds that may be found in any particular lot of seed is limited to 1 seed of any or all of the restricted noxious weed seeds to 2,000 seeds of the seed sold, offered, exposed, or transported for sale, except that for buckhorn and yellow rocket, the limit shall be 1 seed to 1,000 seeds of the seed sold, offered, exposed, or transported for sale.

If present in a lesser ratio, the seed consisting of or containing the restricted noxious weeds may be sold, provided that the name of the restricted noxious weed(s) must be named on the tag together with the number of the restricted weed seeds per pound, unless they are buckhorn or yellow rocket. If the restricted noxious weeds are either of these, they need not be shown on the tag unless they exceed 90 seeds per pound.