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Bills · 2025-2026 Regular Session

SB 798

Became law Official bill text Atom feed

Relating to: a wetland assured delineation program, extending the time limit for emergency rule procedures, providing an exemption from emergency rule procedures, and granting rule-making authority. (FE)

Administrative rules Administrative rules — Revisions Natural resources department of — Environmental protection Wetland

  1. Introduced, completed
  2. Passes Senate, completed
  3. Passes Assembly, completed
  4. Governor signs, completed
  5. Law, completed

Unfamiliar terms? Glossary

What this bill does

Plain-language analysis by the nonpartisan Legislative Reference Bureau

This bill directs the Department of Natural Resources to establish a wetland assured delineation program.

Current law generally prohibits the discharge of dredged or fill material into a wetland unless a person is issued a wetland general permit or individual permit by DNR. Under current law, a person who owns or leases land may use the following methods to delineate the boundaries of a wetland in a manner recognized by DNR: 1) the person may request that DNR provide a wetland identification to determine if wetlands are located on a parcel, or part of a parcel, that does not exceed five acres; 2) the person may have a third person prepare a wetland delineation and request that DNR confirm the boundaries of the wetland as delineated by that third person, based on DNR’s on-site inspection of the land; or 3) with respect to nonfederal wetlands, the person may have a qualified third person perform a wetland identification delineating the boundaries of a wetland and request DNR to confirm those boundaries, not based upon an on-site inspection of the land but rather based on a review of maps, aerial photographs, surveys, wetland delineations, and hydrophytic soil conditions. Under current law, nonfederal wetlands are wetlands that are not under the jurisdiction of the federal government, and a qualified third person is an individual who has completed basic and advanced wetland training and has a minimum of one year of field experience in wetland delineation.

The bill adds a wetland assured delineation program as a fourth method for delineating the boundaries of a wetland in a manner recognized by DNR. Under the program, a person may apply to DNR to be certified as an assured delineator. A wetland delineation prepared by an assured delineator has the same effect as a wetland identification or confirmation prepared by DNR, and a wetland delineation prepared by an assured delineator need not be confirmed by DNR. Under the bill, DNR must charge a $900 annual certification fee to an assured delineator, must require a report of each wetland delineation an assured delineator prepares, and may charge a filing fee not to exceed $20 for each report submitted.

The bill provides that a wetland delineation prepared by an assured delineator is effective for five years from the date upon which the wetland delineation report is submitted to DNR. This matches the general effective period for wetland identifications and confirmations of wetlands provided by DNR under current law. In an exception under current law, a wetland identification or confirmation provided by DNR is effective for 15 years from the date provided by DNR if the wetland is a nonfederal wetland and the parcel of land is subject to a storm water management zoning ordinance or a storm water discharge permit. The bill adds to this exception a wetland delineation by an assured delineator that meets these conditions, and changes this exception to be effective for 15 years from the date the U.S. army corps of engineers makes a determination regarding whether the wetland is subject to federal jurisdiction on the basis of the wetland identification, confirmation, or delineation.

The bill requires DNR to establish application and qualification requirements for assured delineator certification but includes some minimum requirements, such as certain educational degrees, specific amounts of full-time professional field experience in wetland delineation based on educational degree, and completion of a wetland delineation training course based on the U.S. Army Corps of Engineers wetland delineation manual. The bill also requires DNR to charge an application processing fee of $500. The bill provides that an applicant whose application is not approved may reapply and requires DNR to accept applications no less than annually and at least during the period beginning September 15 and ending November 30 for applicants who wish to be certified beginning on March 15 of the next calendar year.

The bill requires DNR to review the performance of assured delineators on a recurring basis and authorizes DNR to perform in-field audits of specific wetland delineations submitted by assured delineators in the 12 months preceding the beginning of the audit. The bill allows DNR to investigate any person’s complaint that an assured delineator may have failed to accurately identify wetlands on a property for which a report was submitted in the 12 months preceding the date of the complaint. If the data gathered in the investigation show substantial evidence that a wetland delineation was conducted in a manner not supported by the wetland delineation manual published by the U.S. Army Corps of Engineers, the bill requires DNR to so notify the assured delineator and require the assured delineator to correct the report. The bill provides that any deadline for DNR action with respect to a wetland general or individual permit is tolled on the date of that notification until the assured delineator submits a corrected report.

The bill prohibits DNR from using data gathered in the investigation to modify a wetland permit or exemption decision solely on the basis of that data. The bill allows DNR to use data gathered in the investigation to evaluate an assured delineator’s compliance with assured delineation program requirements.

The bill allows DNR to revoke a person’s certification as an assured delineator if it finds the person did any of a list of actions, for example knowingly falsifying or misrepresenting a wetland boundary. Under the bill, a person whose assured delineator certification has been revoked is entitled to a contested case hearing.

Under the bill, DNR must consider a person who is approved or certified as an assured delineator under an existing pilot program as certified as an assured delineator under the program created in the bill.

What it would cost

Fiscal estimates filed by state agencies, as official PDFs

Sponsors

Introduced by: Dassler-Alfheim (D) , Felzkowski (R) , Feyen (R) , Jacque (R)

12 cosponsors

Behnke (R) , Doyle (D) , Goeben (R) , Green (R) , Knodl (R) , McCarville (D) , Miresse (D) , Mursau (R) , Ratcliff, Spreitzer and Smith , Snodgrass (D) , Steffen (R) , Wichgers (R)

Registered lobbying interests · 10

Organizations that registered lobbying activity on this bill with the Wisconsin Ethics Commission. Registration means interest, not a position for or against. Official record

Votes

Senate: Report adoption of Senate Amendment 1 recommended by Committee on Natural Resources, Veteran and Military Affairs, Ayes 5, Noes 0

Passed 5–0 Feb 2, 2026 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Senate: Report passage as amended recommended by Committee on Natural Resources, Veteran and Military Affairs, Ayes 5, Noes 0

Passed 5–0 Feb 2, 2026 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Senate: Assembly Substitute Amendment 2 concurred in, Ayes 32, Noes 1

Passed 32–1 Mar 17, 2026 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Full history

  1. Dec 22, 2025 · Senate

    Introduced by Senators Felzkowski, Jacque, Dassler-Alfheim and Feyen; cosponsored by Representatives Mursau, Behnke, Doyle, Goeben, Green, Knodl, McCarville, Steffen and Wichgers

  2. Dec 22, 2025 · Senate

    Read first time and referred to Committee on Natural Resources, Veteran and Military Affairs

  3. Jan 13, 2026 · Senate

    Fiscal estimate received

  4. Jan 16, 2026 · Senate

    Senate Amendment 1 offered by Senator Felzkowski

  5. Jan 21, 2026 · Senate

    Representative Snodgrass added as a cosponsor

  6. Jan 28, 2026 · Senate

    Public hearing held

  7. Jan 29, 2026 · Senate

    LRB correction (Senate Amendment 1)

  8. Feb 2, 2026 · Senate

    Available for scheduling

  9. Feb 2, 2026 · Senate

    Executive action taken

  10. Feb 2, 2026 · Senate

    Report adoption of Senate Amendment 1 recommended by Committee on Natural Resources, Veteran and Military Affairs, Ayes 5, Noes 0

  11. Feb 2, 2026 · Senate

    Report passage as amended recommended by Committee on Natural Resources, Veteran and Military Affairs, Ayes 5, Noes 0

  12. Feb 9, 2026 · Senate

    Placed on calendar 2-11-2026 pursuant to Senate Rule 18(1)

  13. Feb 11, 2026 · Senate

    Senators Ratcliff, Spreitzer and Smith added as coauthors

  14. Feb 11, 2026 · Senate

    Read a second time

  15. Feb 11, 2026 · Senate

    Senate Amendment 1 adopted

  16. Feb 11, 2026 · Senate

    Referred to joint committee on Finance

  17. Feb 11, 2026 · Senate

    Withdrawn from joint committee on Finance and taken up

  18. Feb 11, 2026 · Senate

    Ordered to a third reading

  19. Feb 11, 2026 · Senate

    Rules suspended to give bill its third reading

  20. Feb 11, 2026 · Senate

    Read a third time and passed

  21. Feb 11, 2026 · Senate

    Ordered immediately messaged

  22. Feb 12, 2026 · Assembly

    Received from Senate

  23. Feb 17, 2026 · Assembly

    Read first time and referred to committee on Rules

  24. Feb 17, 2026 · Assembly

    Made a special order of business at 1:24 PM on 2-18-2026 pursuant to Assembly Resolution 13

  25. Feb 18, 2026 · Assembly

    Representative Miresse added as a cosponsor

  26. Feb 18, 2026 · Assembly

    Assembly Substitute Amendment 1 offered by Representative Neubauer

  27. Feb 18, 2026 · Assembly

    Read a second time

  28. Feb 18, 2026 · Assembly

    Assembly Substitute Amendment 2 offered by Representative Mursau

  29. Feb 18, 2026 · Assembly

    Assembly Substitute Amendment 2 adopted

  30. Feb 18, 2026 · Assembly

    Ordered to a third reading

  31. Feb 18, 2026 · Assembly

    Rules suspended

  32. Feb 18, 2026 · Assembly

    Read a third time and concurred in as amended

  33. Feb 18, 2026 · Assembly

    Ordered immediately messaged

  34. Feb 19, 2026 · Senate

    Received from Assembly amended and concurred in as amended, Assembly Substitute Amendment 2 adopted

  35. Mar 5, 2026 · Senate

    LRB correction (Senate Amendment 1)

  36. Mar 16, 2026 · Senate

    Placed on calendar 3-17-2026 pursuant to Senate Rule 18(1)

  37. Mar 17, 2026 · Senate

    Assembly Substitute Amendment 2 concurred in, Ayes 32, Noes 1

  38. Mar 17, 2026 · Senate

    Action ordered immediately messaged

  39. Mar 23, 2026 · Senate

    LRB correction (Assembly Substitute Amendment 2)

  40. Mar 23, 2026 · Senate

    Report correctly enrolled

  41. Apr 2, 2026 · Senate

    Presented to the Governor on 4-2-2026

  42. Apr 6, 2026 · Senate

    Report approved by the Governor on 4-2-2026. 2025 Wisconsin Act 172

  43. Apr 6, 2026 · Senate

    Published 4-3-2026