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Required in some areasSources checked Oct 6, 2026

Nevada emissions testing rules

Nevada requires a yearly emissions test for vehicles based in the urban areas of Clark and Washoe counties. New vehicles are exempt for their first three registrations and hybrids for five model years; the DMV caps the test price each year.

Where testing is required

Testing applies to vehicles based in the urban areas of Clark or Washoe county; vehicles based in remote areas of those counties are exempt.

“Based in the urban areas of Clark or Washoe county.”

Which vehicles are tested

Gasoline vehicles of model year 1968 or newer, of any size, and diesels up to 14,000 pounds GVWR need a test.

“1968 model year or newer. Vehicle Type Gasoline powered (regardless of weight or size) Diesel Powered with GVWR up to 14,000 lbs”

How often

The smog check is yearly; 1996 and newer vehicles are checked through OBD II. A test is valid for 90 days.

“Your yearly smog check on 1996 and newer vehicles is done through OBD II, rather than the older "tail pipe" test.”

  • “Standard: Emission tests are valid for 90 days.”

What it costs

For 2026 the DMV caps the total for a light-duty gasoline test at $75.50 in Clark County ($68.50 inspection plus a $7 certificate) and $71.50 in Washoe County.

“Light Duty - Gasoline $68.50 $7 $75.50”

  • “2026 Maximum Testing fees”
  • “Light Duty - Gasoline $64.50 $7 $71.50”

Exemptions

A new vehicle needs its first test at its fourth registration; hybrids are exempt for five model years and test in the sixth.

“A new vehicle at its fourth registration. The first three registrations are exempt. Hybrids are exempt for five model years. They will require a test in the sixth model year.”

Nevada emissions testing questions

Does Nevada require emissions testing?

Yes. Required in some areas. Testing applies to vehicles based in the urban areas of Clark or Washoe county; vehicles based in remote areas of those counties are exempt.

Which vehicles need an emissions test in Nevada?

Gasoline vehicles of model year 1968 or newer, of any size, and diesels up to 14,000 pounds GVWR need a test.

How often is the emissions test in Nevada?

The smog check is yearly; 1996 and newer vehicles are checked through OBD II. A test is valid for 90 days.

How much does an emissions test cost in Nevada?

For 2026 the DMV caps the total for a light-duty gasoline test at $75.50 in Clark County ($68.50 inspection plus a $7 certificate) and $71.50 in Washoe County.

Which vehicles are exempt in Nevada?

A new vehicle needs its first test at its fourth registration; hybrids are exempt for five model years and test in the sixth.

Sources

Every quotation above is checked word for word against our saved copy of the page, on the date shown. Rules change; if a page has moved or says something different, tell us at the corrections page.