DEPARTMENT OF AGRICULTURE  
AND RURAL DEVELOPMENT  
PESTICIDE AND PLANT PEST MANAGEMENT DIVISION  
REGULATION NO. 637. PESTICIDE USE  
Filed with the secretary of state on May 21, 2021  
These rules take effect immediately upon filing with the secretary of state unless adopted  
under section 33, 44, or 45a(6) of the administrative procedures act of 1969, 1969 PA  
306, MCL 24.233, 24.244, or 24.245a. Rules adopted under these sections become  
effective 7 days after filing with the secretary of state.  
(By authority conferred on the director of the department of agriculture and rural  
development by section 8325 of the natural resources and environmental protection act,  
1994 PA 451, MCL 324.8325)  
R 285.637.11 of the Michigan Administrative Code is amended, as follows:  
R 285.637.11 Commercial notification and posting requirements.  
Rule 11. (1) The requirements of this rule do not apply to general-use ready-to-use  
pesticide.  
(2) When making a broadcast, foliar, or space application of pesticides to an  
ornamental or turf site, other than a golf course or farm production operation, a  
commercial applicator shall comply with both of the following provisions:  
(a) In addition to requirements specified in R 285.637.12(1) and (2), an applicator shall  
inform a customer that lawn markers should remain posted for 24 hours, after which time  
the customer should remove the lawn markers.  
(b) Immediately following the application, a commercial applicator shall place a lawn  
marker sign at the primary point or points of entry. Lawn markers specified in this  
subrule (2) must only be used when making pesticide applications and must comply with  
all of the following specifications:  
(i) Be 4 inches high by 5 inches wide.  
(ii) Be constructed of rigid, weather-resistant material.  
(iii) Be attached to a supporting device with the bottom of the marker extending not  
less than 12 inches above the turf.  
(iv) Be identically printed on both sides in green letters on a white background using  
the indicated point type size.  
(v) Include only the following information:  
(A) The statement "CAUTION" in 11/16-inch high (72-point) type.  
(B) The statement "Pesticide Application" in 9/32-inch (30-point) type.  
(C) The statement "Keep Off Until Dry" in 9/32-inch (30-point) type.  
February 5, 2021  
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(D) Have not less than a 2-inch diameter circular illustration that depicts an adult and  
child walking a dog on a leash. The illustration must depict, using a diagonal line across  
the circle, that this action is prohibited.  
(E) The statement "Customer: Please Remove After 24 Hours" in 3/32-inch (11-point)  
type.  
(F) Additional information not required under this subrule may only be placed on the  
lawn marker or supporting device with the written approval of the department.  
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(3) All broadcast, foliar, or space pesticide applications that are made to public or  
private golf courses by a commercial applicator must comply with all of the following  
provisions:  
(a) Applicators shall notify users of, or visitors to, the golf course in accordance with  
all of the following requirements:  
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(i) Notification of pesticide application must be provided on a poster or placard that is  
constructed of all-weather material.  
(ii) The poster or placard must contain a general statement that from time to time  
pesticides are in use in the management of turf and ornamental pests.  
(iii) The poster or placard must state that questions or concerns that arise in relation to  
the pesticide application must be directed to the golf course superintendent or his or her  
designated representative.  
(iv) The poster or placard must state that, upon request, the superintendent or his or  
her representative will supply the information specified in subdivision (b) of this subrule.  
(v) The poster or placard must be displayed prominently in the pro shop, locker rooms,  
or registration area.  
(b) At the time of broadcast, foliar, or space pesticide application to golf course  
property, the applicator shall post on the first and tenth tees, in a conspicuous place, a  
sign that states all of the following information:  
(i) The date and time of application.  
(ii) The common name of the pesticide applied.  
(iii) The areas treated.  
(iv) The label reentry precautions.  
(v) The name of a person who may be contacted for further information.  
(c) Posting requirements must remain in effect until specific label reentry requirements  
have been fulfilled.  
(4) A commercial applicator who makes a broadcast, foliar, or space insecticide  
application in a commercial building, public building, or health care facility shall comply  
with all of the following:  
(a) The applicator shall, upon completion of an insecticide application, provide a sign  
to be displayed in a readily observable place at the primary point of entry by the building  
manager.  
(b) The applicator shall instruct the building manager that the sign must be displayed  
and remain posted for not less than 48 hours after the most recent application of an  
insecticide.  
(c) The building manager shall post all signs provided by the applicator in accordance  
with this subrule.  
(d) Signs that are used for posting must comply with the following specifications:  
(i) The sign shall be a minimum of 2 1/2 inches high by 2 1/2 inches wide.  
(ii) Information must be in black letters on a muted background.  
(iii) The sign must have an illustration that is not less than 1 3/4 inches high by 2  
inches wide that depicts a cloud symbol encompassing a house. This illustration shall  
serve to inform the public that insecticides have been applied in the building.  
(iv) The sign must have a space provided in which the date of application is to be  
indicated by the applicator. This information must read: "DATE _______________" in a  
minimum 1/8-inch (16-point) type.  
(5) All of the following provisions apply to notification requirements for community or  
right-of-way applicators:  
(a) A commercial applicator shall not make a broadcast or foliar application of  
pesticides for community or right-of-way pest management without making documented  
efforts to provide prior notification to persons who own or reside on property that is  
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within the target area or to their authorized representatives. Prior notification shall be  
provided by the commercial applicator or his or her agent.  
(b) Documented efforts to notify property owners, their agents, or persons who own or  
reside on property that is within the target area for community mosquito control pesticide  
applications include at least 1 of the following methods:  
(i) Personal contact.  
(ii) A comprehensive community outreach program, which must be filed annually with  
the director.  
(iii) Prior written notification.  
(c) Commercial applicators who make community pesticide applications for mosquito  
control shall do all of the following:  
(i) Provide prior notification to persons who request it.  
(ii) Exclude mosquito pesticide applications from the property of those persons who  
request to be excluded.  
(iii) Provide general information or literature about the pesticide application in response  
to inquiries within the targeted community. This does not include any proprietary or  
confidential business information.  
(d) Reasonable efforts to notify property owners, their agents, or persons residing  
within the target area for right-of-way or community pesticide applications other than  
those for mosquito control must include at least 1 of the following methods:  
(i) Personal contact.  
(ii) Advertisement in at least 1 newspaper of general circulation within the area of  
application. The notice must be placed in the legal advertisement section.  
(iii) Prior written notification.  
(e) Notification of property owners must include all the following information:  
(i) The name, address, and phone number of the application firm or individual.  
(ii) The brand name and active ingredients of the pesticide or pesticides used.  
(iii) The method of application.  
(iv) The scheduled date or dates of application.  
(v) The name, address, and phone number of a person who may be contacted and who  
is responsible for supplying updated information concerning the application for those  
people who request it.  
(vi) Any reentry restrictions.  
(f) Multiple-use areas must be posted for not less than 24 hours at the primary point or  
points of entry immediately after a pesticide application has occurred within the area.  
The posting must state all of the following information:  
(i) The name, address, and phone number of the application firm or individual.  
(ii) The brand name and active ingredients of the pesticide or pesticides used.  
(iii) The date of the application.  
(iv) Precautionary warnings or reentry restrictions that appear on the label of the  
pesticide or pesticides that are applied.  
(g) Upon petition, the director may exempt community or area-wide applicators from  
the requirements of subdivision (f) of this subrule if there is sufficient documentation to  
indicate that residues of a particular pesticide are not detectable after application.  
(h) Upon a determination by the director of the Michigan department of health and  
human services that an imminent danger to the health or lives of individuals exists in this  
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state, the director shall cooperate and provide assistance and recommendations to  
eliminate or mitigate the danger. The director may waive or modify notification and  
exclusion requirements of this rule to facilitate response.  
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