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NRCS Conservation Practice Standards do not replace local building, drainage, stormwater, or other legal requirements—and they do not grant a permit. They set technical criteria for conservation practices. Before changing runoff or disturbing ground, identify the applicable state-adapted NRCS standard and separately ask the authorities responsible for your property which approvals apply to your project.
What is the difference between an NRCS standard and a local code?
A Conservation Practice Standard (CPS) describes a conservation practice, the conditions it is meant to address, and technical criteria intended to help the practice work as designed. The national standard is a baseline. NRCS adapts standards through each state’s Field Office Technical Guide (FOTG) to account for local conditions such as soils, climate, topography, and regulations. NRCS says state standards may be more restrictive, but cannot be less stringent than the national version.
Building, drainage, and stormwater requirements are administered by the authorities with jurisdiction over the property and proposed work. Which rules apply depends on the location and scope of the project; a CPS cannot tell you which local permits or code provisions apply to your parcel.
| Question | NRCS Conservation Practice Standard | Local building and stormwater requirements |
|---|---|---|
| Main role | Technical criteria for planning, designing, installing, and maintaining a conservation practice. | Legal and administrative requirements set or enforced by the relevant authorities for work in their area. |
| Geographic version | National baseline adapted by state in the FOTG; NRCS directs users to the state version. | Must be confirmed with the authorities responsible for the property and proposed work. |
| Does it replace the other? | No. NRCS standards direct users to comply with applicable laws and obtain required permits. | No. A code review or permit does not by itself establish that the conservation practice meets its applicable CPS criteria. |
| When to check | During conservation-practice planning and implementation. | Before work, early enough to establish applicable approvals, design conditions, and construction requirements. |
| What to ask about | Practice purpose, the state-adapted criteria, site conditions, effects, and maintenance. | Whether local definitions or thresholds, permits, design or discharge criteria, submissions, inspections, or closeout duties apply. These are questions to verify, not requirements that apply everywhere. |
Do NRCS standards override local codes or grant a permit?
No. NRCS’s Stormwater Runoff Control standard (CPS 570) requires compliance with applicable laws and regulations, necessary permits, and utility-location requirements. Its Structure for Water Control standard (CPS 587) likewise requires compliance with applicable federal, Tribal, state, and local laws, rules, and regulations, and says to obtain required permits before construction begins. An NRCS practice standard is technical guidance for the practice; it is not a building approval, drainage authorization, or permit.
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The reverse is also important: a permit or code review does not by itself show that a proposed conservation practice meets the applicable NRCS criteria. Treat the two checks as complementary.
Where do you find the standard for your state?
- Identify the conservation practice relevant to the work and look for its state-adapted standard in the NRCS Field Office Technical Guide (FOTG).
- Use the applicable state version rather than relying on a national standard alone. NRCS cautions that national conservation practice standards should not be used by themselves to plan, design, or install a practice.
- If the state practice standard is not available in the FOTG, contact the appropriate NRCS state office or local USDA Service Center.
State criteria can differ from the national baseline to reflect local conditions. For a real project, confirm which adopted version applies rather than assuming that a national PDF is the current design document for your location.
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What does the stormwater example, CPS 570, cover?
NRCS defines Stormwater Runoff Control (CPS 570) as measures or systems used to control the quantity and quality of stormwater runoff. Its national standard describes use where runoff may contribute to downstream flooding, sedimentation, channel degradation, or degradation of surface- or groundwater quality. It includes development sites and remedial work on developed sites. Runoff from livestock facilities is excluded from CPS 570 and should be addressed under other relevant standards.
Planning beyond the property line
The standard calls for planning based on an assessment of the downstream area. Depending on site conditions and project goals, the plan may address erosion on the site, sedimentation off site, runoff quantity, groundwater recharge, runoff quality, and stability after construction. The point is not simply to move water away from one part of a property: the design also needs to consider where that water goes and what effects it may have downstream.
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Overflow, stabilization, and maintenance
NRCS’s national CPS 570 requires runoff-control methods to provide a safe bypass for flows above the design storm. It also calls for prompt stabilization where appropriate and identifies vegetation, conservation cover, and mulching standards as examples. The appropriate method and design depend on the state-adapted standard and project conditions; the national standard does not establish one universal design storm for every property.
NRCS’s Stormwater Runoff Control practice overview says the practice may require maintenance over its expected life, but it does not set one universal owner schedule. The maintenance plan and any applicable requirements need to be established for the specific practice and project. The overview also lists related practice categories—Pond (378), Diversion (362), Grassed Waterway (412), Structure for Water Control (587), Water and Sediment Control Basin (638), and Critical Area Planting (342). Those are categories to consider with appropriate guidance, not ready-made prescriptions for every parcel.
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Which local approvals might apply to your project?
There is no reliable universal permit answer without the property’s jurisdiction and a description of the work. Ask the relevant building, planning, drainage, or stormwater authority what applies to the actual parcel and scope. Depending on location and project, useful questions may include whether grading, floodplain, drainage, or other approvals are required; whether local design or discharge criteria apply; and what plans, inspections, or closeout steps are expected. This is a checklist of issues to verify, not a claim that every project needs each approval.
Do this before ground disturbance, not after construction has started. The required agencies, thresholds, code sections, inspections, and documents cannot be determined from an NRCS standard alone.
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How to check a proposed drainage or runoff project
- Describe the work. Record what is changing, where runoff originates and will discharge, and whether the work involves grading, a structure, detention, infiltration, or another conservation practice.
- Identify the relevant practice and state standard. Check the current state-adapted FOTG standard; contact NRCS if it is unavailable or the appropriate practice is unclear.
- Ask local authorities about approvals. Give the responsible building, planning, drainage, or stormwater office the property location and scope, and ask which permits, design conditions, reviews, and inspections apply before work begins.
- Review site and downstream effects. For a stormwater-control project, determine how the plan addresses erosion, sediment, runoff quantity and quality, downstream effects, safe overflow, and post-construction stabilization, as applicable.
- Establish upkeep and retain records. Confirm who will maintain the installed practice and what schedule or obligations the approved plan and applicable requirements specify. Keep approved plans and maintenance information with the property records.
For complex drainage or water-control design, qualified local professional assistance can help evaluate site conditions, downstream effects, and approval requirements. That does not replace review by the authorities with jurisdiction.
Which version of the national stormwater standard is current?
NRCS’s national Stormwater Runoff Control (CPS 570) PDF is dated September 2020. The NRCS practice page says the practice was updated in 2026 and lists October 2030 as the expected start of its next review. Because the national page links state versions and warns against using the national standard alone to plan, design, or install the practice, check the current adopted state FOTG version for project decisions.
NRCS has also posted a 2026 stakeholder redline proposing changes to the national standard. A proposed redline is not an adopted requirement; do not treat its draft language as binding criteria. Verify the final adopted version with NRCS before relying on a change.
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