Weed Control

The County Weed Control Act

Weed Management Districts Established. 

A weed management district shall be formed in every county of this state and shall include all the land within the boundaries of the county, except that weed management district may include more than one county through agreement of the commissioners of the affected counties.

Noxious weeds and seeds declared nuisance. 

Noxious weeds and seed of any noxious weed are hereby declared a common nuisance. It is unlawful to permit noxious weeds to propagate. It is unlawful for any person to permit any noxious weed to propagate or to go to seed on his land, except any person who adheres to the noxious weed management program of his district or who has entered into and is in compliance with a noxious weed management agreement is considered to be in compliance with this section

Weed management program. 
The noxious weed management must be based on a plan approved by the board.

1 Specify the goals and priorities of the program; review the distribution and abundance of each noxious weed and specify the locations of new infestations.

2.Specify management and control methods.

3. The board shall provide for the management of noxious weeds on all land or rights-of-way owned or controlled by a county or municipality within the confines of the district.

4. The board may establish special management zones within the district. The management criteria in such zones may be more or less stringent than the general management criteria for the district.


The board has established embargo programs to reduce the spread of noxious weeds within the district or the introduction of noxious weeds into the district.

1. The board has established a special embargo program for the movement of forage, as defined in 80-7-903 , into or out of the county.

2. The board may implement an embargo upon confirmation of a violation if the forage has not been certified as weed free, as defined in 80-7-903.

3. A person in possession of forage that is not in compliance with Title 80, chapter 7 part 9 may not dispose or move of the forage as noxious weed free subject to embargo until written permission is obtained from the board. If the forage that is subject to embargo is found to have met all of the requirements of the state certification program and the department verifies compliance with the program, the board shall release the embargo.

Park County Weed Control Board Subdivision Requirements. 

The land owner must agree to abide by the Montana County Noxious Weed Management Act, Title 7 chapter 22.

1.Any person wishing to subdivide property into parcels less than 160 acres in size must submit an application to the Weed Board Supervisor (30) days prior to submission of the proposed subdivision plan to the Park County Planning Board.

2. All excavation equipment must be power washed and inspected before entering and leaving the subdivision.

3. All borrow materials such as gravel, sand, top soil, rock, road mix:, mulch, straw, hay, grass and rock must come from a certified noxious weed free source.

4. Permanent Gravel Pits must be checked annually for noxious weeds and treated if necessary by June 15 and re-treated by August 30 when necessary. Materials (gravel, topsoil, rock, sand, etc.) must be certified noxious weed free before hauling.

Financial assistance to persons responsible for weed control. 

The commissioners, upon recommendation of the board, may establish cost-share programs with any person, specifying cost that may be paid from the noxious weed fund and cost that must be paid by the person. Cost- share programs may be established for special projects and for established management zones.

Cooperative agreements. The agreement must include the following:

1. A 6-year integrated noxious weed management plan, which must be updated biennially.A noxious weed management goals statement

2. A specific plan of operation for the biennium, including a budget to implement the plan.A provision requiring a biennial performance report by the board to the state weed coordinator, regarding the success of the plan.

3. A board may develop and carry out its noxious weed management program in cooperation with boards of other districts, with state and federal governments and their agencies, or with any person within the district. The board may enter into cooperative agreements with any of these parties.

4. Each agency or entity listed in subsection (I) shall submit a statement or summary of all noxious weed actions that are subject to the agreement required under subsection (1) to the state weed coordinator and shall post a copy of the statement or summary on the state bulletin board.