Mont. Code Ann. » TITLE 61. MOTOR VEHICLES · CHAPTER 8. TRAFFIC REGULATION · Part 1. General Provisions
Montana Code Annotated

Mont. Code Ann. § 61-8-103 (2026)

Provisions Uniform Throughout State -- Power Of Local Authorities

✓ current as of May 2026
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  1. MCA Contents
  2. TITLE 61
  3. CHAPTER 8
  4. Part 1
  5. 61-8-103 Provisions uniform throughout state -- power of local authorities

TITLE 61. MOTOR VEHICLES

CHAPTER 8. TRAFFIC REGULATION

Part 1. General Provisions

Provisions Uniform Throughout State -- Power Of Local Authorities

61-8-103. Provisions uniform throughout state -- power of local authorities. The provisions of this chapter shall be applicable and uniform throughout this state and in all political subdivisions and municipalities therein and no local authority shall enact or enforce any ordinance, rule, or regulation in conflict with the provisions of this chapter unless expressly authorized herein. Local authorities may, however, adopt additional traffic regulations which are not in conflict with the provisions of this chapter.

History: En. Sec. 27, Ch. 263, L. 1955; amd. Sec. 1, Ch. 201, L. 1957; R.C.M. 1947, 32-2130.

Notes of Decisions
Cited in 3 cases, 2014–2018 · leading case: City of Missoula v. Armitage, 2014 MT 274 (Mont. 2014).
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City of Missoula v. Armitage, 2014 MT 274 (Mont. 2014). · cites it 24× “The exercise of power is inconsistent with state law or regulation if it establishes standards or requirements that are lower or less stringent than the state enactments.”
City of Helena v. Svee, 214 MT 311 (Mont. 2014). · cites it 4× “with state law or regulation if it establishes standards or requirements which are lower or less stringent than those imposed by state law or regulation,” and held that a city ordinance imposing a fine upon a DUI suspect for refusing a breath or blood test was not inconsistent…”
City of Missoula v. Franklin, 425 P.3d 1285 (Mont. 2018). · cites it 7× “The Missoula ordinances are additional regulations and pose no conflict with state law as contemplated by § 61-8-103, MCA." Armitage , ¶ 22 . 1 This case, in contrast, involves the City's attempt to impose an additional charge on a state sentence for a criminal offense defined…”
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