{
  "dataset": "Colorado compliance calendar",
  "description": "Recurring Colorado dates for homeowners, buyers, movers, and the outdoors crowd — property-tax deadlines, the big-game draw, license years, the traction-law season — each tied to the Colorado Porch page that explains it.",
  "publisher": "Colorado Porch",
  "url": "https://coloradoporch.com/data/v1/colorado-calendar.json",
  "source": {
    "label": "Colorado Porch compliance calendar",
    "href": "https://coloradoporch.com/calendar/colorado.ics"
  },
  "vintage": "2026, Colorado Porch (every date traces to an official source on the linked page)",
  "lastUpdated": "2026-07-10",
  "license": "CC BY 4.0",
  "attribution": "Data: Colorado Porch (coloradoporch.com) — CC BY 4.0",
  "attributionUrl": "https://coloradoporch.com/?utm_source=dataset&utm_medium=citation&utm_campaign=colorado-calendar",
  "citeAs": "Colorado Porch, \"Colorado compliance calendar\" (2026, Colorado Porch (every date traces to an official source on the linked page)). https://coloradoporch.com/data/v1/colorado-calendar.json",
  "fields": [
    {
      "name": "slug",
      "type": "string",
      "description": "Stable event id."
    },
    {
      "name": "label",
      "type": "string",
      "description": "Plain-noun event label."
    },
    {
      "name": "month",
      "type": "number",
      "description": "Month, 1–12."
    },
    {
      "name": "day",
      "type": "number",
      "description": "Day of month for fixed dates (null for shifting windows)."
    },
    {
      "name": "window",
      "type": "string",
      "description": "Text window for events without a fixed day (null otherwise)."
    },
    {
      "name": "audience",
      "type": "string",
      "description": "buyer, owner, mover, or outdoors."
    },
    {
      "name": "blurb",
      "type": "string",
      "description": "One or two sentences."
    },
    {
      "name": "href",
      "type": "string",
      "description": "The Colorado Porch page that explains the date."
    },
    {
      "name": "officialLabel",
      "type": "string",
      "description": "Official source label (may be null)."
    },
    {
      "name": "officialUrl",
      "type": "string",
      "description": "Official source URL (may be null)."
    }
  ],
  "rowCount": 18,
  "data": [
    {
      "slug": "property-tax-first-half",
      "label": "First-half property tax payment",
      "month": 2,
      "day": null,
      "window": "The last day of February",
      "audience": "owner",
      "blurb": "Pay in full by April 30, or in two halves — first half by the last day of February, second half by June 15. Your mortgage servicer may pay through escrow, but read the bill and confirm it was paid.",
      "href": "https://coloradoporch.com/homebuyer-timeline/",
      "officialLabel": "Colorado DOLA — Division of Property Taxation",
      "officialUrl": "https://dpt.colorado.gov/protests-and-appeals"
    },
    {
      "slug": "fishing-license-year",
      "label": "Fishing and small-game license year begins",
      "month": 3,
      "day": 1,
      "window": null,
      "audience": "outdoors",
      "blurb": "The license year runs March 1 through March 31 of the next year (about 13 months). An annual license bought in spring gives you a full season; one bought in late winter still expires at the end of March.",
      "href": "https://coloradoporch.com/outdoors/fishing/",
      "officialLabel": "CPW — fishing licenses and dates",
      "officialUrl": "https://cpw.state.co.us/activities/fishing/fishing-licenses-and-dates"
    },
    {
      "slug": "big-game-draw-opens",
      "label": "Big-game primary draw opens",
      "month": 3,
      "day": null,
      "window": "Around March 1",
      "audience": "outdoors",
      "blurb": "The primary draw opens around March 1 and closes in early April. If you want a limited tag, you must apply before it closes — there's no buying it later.",
      "href": "https://coloradoporch.com/outdoors/hunting/",
      "officialLabel": "CPW — big game",
      "officialUrl": "https://cpw.state.co.us/activities/hunting/big-game"
    },
    {
      "slug": "big-game-draw-deadline",
      "label": "Big-game draw application deadline",
      "month": 4,
      "day": null,
      "window": "Early April",
      "audience": "outdoors",
      "blurb": "The primary draw opens around March 1 and closes in early April. Miss it and there's no buy-it-later for limited tags — only leftovers, if any remain, starting in early August.",
      "href": "https://coloradoporch.com/outdoors/hunting/",
      "officialLabel": "CPW — buy and apply",
      "officialUrl": "https://cpw.state.co.us/buy-apply"
    },
    {
      "slug": "property-tax-full",
      "label": "Property taxes due in full",
      "month": 4,
      "day": 30,
      "window": null,
      "audience": "owner",
      "blurb": "Pay in full by April 30, or in two halves — first half by the last day of February, second half by June 15. The year you buy is usually prorated at closing.",
      "href": "https://coloradoporch.com/homebuyer-timeline/",
      "officialLabel": "Colorado DOLA — Division of Property Taxation",
      "officialUrl": "https://dpt.colorado.gov/protests-and-appeals"
    },
    {
      "slug": "notice-of-valuation",
      "label": "Notice of Valuation arrives",
      "month": 5,
      "day": 1,
      "window": null,
      "audience": "owner",
      "blurb": "County assessors mail the Notice of Valuation by May 1. Read your home's actual value — it drives the tax bill — and compare it with what you paid and with similar nearby sales.",
      "href": "https://coloradoporch.com/homebuyer-timeline/",
      "officialLabel": "Colorado DOLA — protests and appeals",
      "officialUrl": "https://dpt.colorado.gov/protests-and-appeals"
    },
    {
      "slug": "big-game-draw-results",
      "label": "Big-game draw results",
      "month": 5,
      "day": null,
      "window": "Late May",
      "audience": "outdoors",
      "blurb": "Results come in late May. If you draw, the rest of the tag price hits the card on file.",
      "href": "https://coloradoporch.com/outdoors/hunting/",
      "officialLabel": "CPW — big game",
      "officialUrl": "https://cpw.state.co.us/activities/hunting/big-game"
    },
    {
      "slug": "rmnp-timed-entry",
      "label": "RMNP timed-entry season begins",
      "month": 5,
      "day": null,
      "window": "Late May through mid-October",
      "audience": "outdoors",
      "blurb": "From late May through mid-October, RMNP requires a timed-entry reservation to drive in during the busy daytime hours — on top of the entrance fee. It's per vehicle, booked in advance on Recreation.gov.",
      "href": "https://coloradoporch.com/outdoors/camping/",
      "officialLabel": "Recreation.gov",
      "officialUrl": "https://www.recreation.gov"
    },
    {
      "slug": "free-fishing-days",
      "label": "Free Fishing Days",
      "month": 6,
      "day": null,
      "window": "The first full weekend of June",
      "audience": "outdoors",
      "blurb": "On Free Fishing Days — the first full weekend of June (June 6–7 in 2026) — anyone can fish without a license or Habitat Stamp. All other rules and limits still apply.",
      "href": "https://coloradoporch.com/outdoors/fishing/",
      "officialLabel": "CPW — fishing licenses and dates",
      "officialUrl": "https://cpw.state.co.us/activities/fishing/fishing-licenses-and-dates"
    },
    {
      "slug": "assessor-protest",
      "label": "Assessor protest deadline",
      "month": 6,
      "day": 8,
      "window": null,
      "audience": "owner",
      "blurb": "To dispute the assessor's value, file a protest with the county assessor — commonly by June 8 for real property, though some counties run an alternate schedule, so use the exact date printed on your notice.",
      "href": "https://coloradoporch.com/homebuyer-timeline/",
      "officialLabel": "Colorado DOLA — protests and appeals",
      "officialUrl": "https://dpt.colorado.gov/protests-and-appeals"
    },
    {
      "slug": "property-tax-second-half",
      "label": "Second-half property tax payment",
      "month": 6,
      "day": 15,
      "window": null,
      "audience": "owner",
      "blurb": "Pay in full by April 30, or in two halves — first half by the last day of February, second half by June 15. Read the bill and confirm it was paid even if a lender pays through escrow.",
      "href": "https://coloradoporch.com/homebuyer-timeline/",
      "officialLabel": "Colorado DOLA — Division of Property Taxation",
      "officialUrl": "https://dpt.colorado.gov/protests-and-appeals"
    },
    {
      "slug": "big-game-secondary-draw",
      "label": "Big-game secondary draw",
      "month": 6,
      "day": null,
      "window": "June",
      "audience": "outdoors",
      "blurb": "The secondary draw runs in June, for leftover tags. (In 2026, June 18–30.)",
      "href": "https://coloradoporch.com/outdoors/hunting/",
      "officialLabel": "CPW — big game",
      "officialUrl": "https://cpw.state.co.us/activities/hunting/big-game"
    },
    {
      "slug": "veteran-exemption",
      "label": "Disabled-veteran and Gold Star spouse exemption deadline",
      "month": 7,
      "day": 1,
      "window": null,
      "audience": "owner",
      "blurb": "Qualifying disabled veterans and Gold Star spouses apply by July 1. It removes 50% of the first $200,000 of actual value; apply through your county assessor.",
      "href": "https://coloradoporch.com/homebuyer-timeline/",
      "officialLabel": "Colorado senior and veteran property tax exemptions",
      "officialUrl": "https://dpt.colorado.gov/property-tax-exemption-for-senior-citizens-and-veterans-with-a-disability"
    },
    {
      "slug": "senior-exemption",
      "label": "Senior property tax exemption deadline",
      "month": 7,
      "day": 15,
      "window": null,
      "audience": "owner",
      "blurb": "Seniors who are 65+ and have owned and lived in the home for 10+ years apply by July 15. It removes 50% of the first $200,000 of actual value; apply through your county assessor.",
      "href": "https://coloradoporch.com/homebuyer-timeline/",
      "officialLabel": "Colorado senior and veteran property tax exemptions",
      "officialUrl": "https://dpt.colorado.gov/property-tax-exemption-for-senior-citizens-and-veterans-with-a-disability"
    },
    {
      "slug": "leftover-otc-tags",
      "label": "Leftover and over-the-counter tags on sale",
      "month": 8,
      "day": null,
      "window": "Early August",
      "audience": "outdoors",
      "blurb": "Leftover and over-the-counter tags go on sale in early August. Missing April means missing the best tags for the year — leftovers are what remains.",
      "href": "https://coloradoporch.com/outdoors/hunting/",
      "officialLabel": "CPW — over-the-counter (OTC) tags",
      "officialUrl": "https://cpw.state.co.us/activities/hunting/big-game/over-counter-otc-licenses"
    },
    {
      "slug": "dove-opener",
      "label": "Dove season opens the bird year",
      "month": 9,
      "day": 1,
      "window": null,
      "audience": "outdoors",
      "blurb": "Doves open the bird year on September 1 and need a small-game license plus HIP, but not the duck stamps.",
      "href": "https://coloradoporch.com/outdoors/hunting/",
      "officialLabel": "CPW — small game and waterfowl",
      "officialUrl": "https://cpw.state.co.us/activities/hunting/small-game"
    },
    {
      "slug": "traction-law",
      "label": "Traction Law season begins",
      "month": 9,
      "day": 1,
      "window": "September 1 – May 31",
      "audience": "mover",
      "blurb": "The Traction Law is in effect September 1 – May 31 on the I-70 mountain corridor (Dotsero to Morrison). Under a 2025 update, a two-wheel-drive vehicle must carry chains or an approved traction device the entire season.",
      "href": "https://coloradoporch.com/outdoors/winter-sports/",
      "officialLabel": "CDOT / COtrip — roads, closures, and the traction and chain laws",
      "officialUrl": "https://www.cotrip.org/home"
    },
    {
      "slug": "snowmobile-ohv-registration",
      "label": "Snowmobile and OHV registration year begins",
      "month": 10,
      "day": 1,
      "window": "October 1 – September 30",
      "audience": "outdoors",
      "blurb": "Registration runs October 1 – September 30. Those fees fund grooming, maps, signs, safety, and patrols — and even help support the state's avalanche warning system.",
      "href": "https://coloradoporch.com/outdoors/winter-sports/",
      "officialLabel": "CPW — register a snowmobile",
      "officialUrl": "https://cpw.state.co.us/register-snowmobile"
    }
  ]
}