State sheet · SD
Tier II reporting requirements in South Dakota
- Deadline
- 1 March, yearly
- Takes our file
- No
- Own thresholds
- No — federal
- Fee
- $50–$300
- Filing route read
- 2026-09-09
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How South Dakota takes it
South Dakota runs its own online Tier II site (apps.sd.gov/NR44TierII). You key the facility and each chemical in there and sign the report on screen, which is what sends it to the state. There is a paper form on the DANR Title III site if you would rather post it. The state does not ask for a Tier2 Submit file.
This state does not take the file. Our answer works as the worksheet you type from, with the rule behind every number.
The filing is due 1 March each year and covers the calendar year before it. South Dakota does not pass it on for you — we checked. Filing closes the state’s copy only; your local committee and fire department each need their own from you.
Before you send it — what else South Dakota asks for
Two things people miss here. Signing online only reaches the state — you print the report yourself and send copies to your local fire department and your LEPC, and South Dakota publishes the mailing addresses for both. And the fee has its own date: the report is due 1 March but the fee is not due until 1 April, on an invoice the state mails you after it has the report. If no invoice arrives within ten days of filing, chase it — a payment postmarked after 1 April is late.
Does South Dakota set its own limits?
South Dakota's own agency says it uses the federal thresholds, and we read that page rather than assuming it. We have not gone behind it to the state code, so we say that too.
South Dakota keeps the federal numbers and spells them out in its own training material. A hazardous chemical counts at 10,000 lb. An extremely hazardous substance counts at 500 lb or the threshold planning quantity, whichever is lower. Retail fuel tanks get the federal allowance: 75,000 gallons for petrol, 100,000 for diesel. The South Dakota-only part is not a threshold at all — the report is due 1 March, but the fee is not due until 1 April, on an invoice the state posts after it has your report.
The words we read
South Dakota DANR, “SARA Title III / Tier II” workshop deck for 2025 (danr.sd.gov …/SARATitle3/docs/workshops/2025 Tier II .pdf, 27 pages, read in full 2026-09-11), backed by the programme FAQ on the same site. The deck lists the thresholds outright and they are the federal ones: “Gasoline (all grades combined): Aboveground or Underground tanks at non-retail facilities - 10,000 pounds; Underground tanks holding fuel for retail sale to the public for motor vehicles on land - 75,000 gallons; Diesel (all grades combined): Aboveground or Underground tanks at non-retail facilities - 10,000 pounds; Underground tanks holding fuel for retail sale to the public for motor vehicles on land - 100,000 gallons; Other substances for which you are required by OSHA, to maintain a SDS 10,000 pounds; Extremely Hazardous Substances (EHS): 500 pounds (or the Threshold Planning Quantity (TPQ)).” On the TPQ it adds the federal rule in its own words: “Your TPQ is that number or 500 lbs, whichever is less.” The FAQ repeats the 10,000-pound figure for ordinary hazardous materials.
Where we read this
- South Dakota DANR, “Tier II Reporting Guide — Instructions for Submitting your Report Online” (danr.sd.gov, read 2026-09-09): “By March 1, copies of Tier II reports must be submitted to ALL of the following: 1) State of South Dakota/SERC (When you sign a report on-line, it is automatically submitted to the State of South Dakota/SERC). 2) Local Fire Department (Print a copy of the report … a link to postal service mail addresses is available on the reporting website) 3) Local Emergency Planning Committee (LEPC)”. On the fee: “Tier II Reports are due March 1 but the fee is not due until April 1. Payments postmarked after April 1 are late. Late fees may apply.” and “The fee will be calculated and an invoice mailed (typically within 7 days of state receipt of the Tier II report). If you do not receive an invoice within 10 days of report submittal, call … You are responsible for ensuring the fee is paid prior to the April 1 deadline.” The guide also notes the section 311 side: “There is no fee for Section 311 report submittal.”Checked 2026-09-09
- South Dakota DANR, “SARA Title III / Tier II” workshop deck for 2025 (danr.sd.gov …/SARATitle3/docs/workshops/2025 Tier II .pdf, 27 pages, read in full 2026-09-11), backed by the programme FAQ on the same site. The deck lists the thresholds outright and they are the federal ones: “Gasoline (all grades combined): Aboveground or Underground tanks at non-retail facilities - 10,000 pounds; Underground tanks holding fuel for retail sale to the public for motor vehicles on land - 75,000 gallons; Diesel (all grades combined): Aboveground or Underground tanks at non-retail facilities - 10,000 pounds; Underground tanks holding fuel for retail sale to the public for motor vehicles on land - 100,000 gallons; Other substances for which you are required by OSHA, to maintain a SDS 10,000 pounds; Extremely Hazardous Substances (EHS): 500 pounds (or the Threshold Planning Quantity (TPQ)).” On the TPQ it adds the federal rule in its own words: “Your TPQ is that number or 500 lbs, whichever is less.” The FAQ repeats the 10,000-pound figure for ordinary hazardous materials.State guidance — the code wins where they differ
- South Dakota’s own Tier II pageWe can be right today and the state can change tomorrow. This link does not go stale.
If something here is wrong, the checker has a way to tell us on every answer screen. We would rather be corrected than confident.
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