Mont. Code Ann. § 76-4-125

(1) Except as provided in subsection (2), an application for review A of subdivision a subdivision must be submitted to excluded from the reviewing authority. The review by the reviewing authority provisions of chapter 3 or chapter 25 must be as follows: submitted for review according to the provisions of this part, except that the following divisions or parcels, unless the exclusions are used to evade the provisions of this part, are not subject to review:

(a) At any time after the developer has submitted an application under the Montana Subdivision exclusions cited in 76-3-201, 76-3-207(1)(f), and Platting Act, the developer shall present a subdivision application to the reviewing authority. The application 76-25-402(1)(a) through (1)(h); must include preliminary plans and specifications for the proposed development, whatever information the developer feels necessary for its subsequent review, any public comments or summaries of public comments collected as provided in 76-3-604(7), and information required by the reviewing authority. Subdivision fees assessed by the reviewing authority must accompany the application. If the proposed development includes onsite sewage disposal facilities, the developer shall notify the designated agent of the local board of health prior to presenting the subdivision application to the reviewing authority. The agent may conduct a preliminary site assessment to determine whether the site meets applicable state and local requirements.

(b) Within 5 working days after receipt divisions made for the purpose of acquiring additional land an to application become part of an approved parcel, provided that is water or sewage disposal facilities may not subject to review by a local reviewing authority under 76-4-104, be constructed on the department shall provide a written notice for informational purposes to additional acquired parcel and that the applicant if the application division does not include fall within a copy of the certification from the local health department required by 76-4-104(6)(j) or, if applicable, previously platted or approved subdivision; contain an approval from the local governing body under Title 76, chapter 3, together with any public comments or summaries of public comments collected as provided in 76-3-604(7)(a).

(c) If divisions made for purposes other than the reviewing authority denies an application and the applicant resubmits a corrected application within 30 days construction after the date of the denial letter, the reviewing authority shall complete review of the resubmitted application within 30 water supply or sewage or solid waste disposal facilities as days after receipt of the resubmitted application. If the review of the resubmitted application is conducted by department a local department or board of health that is certified under 76-4-104, the department shall specifies by rule; make a final decision on the application within 10 days after the local reviewing authority completes its review.

(d) Except as provided in 75-1-205(4) and 75-1-208(4)(b), the department shall make a final decision on the proposed certified pursuant to 76-4-127: subdivision within 55 days after the submission of a complete application and payment of fees to the reviewing authority unless an environmental impact statement is required, at which time this deadline may be increased to 120 days. The reviewing authority may not request additional information for the purpose of extending the time allowed for a review and final decision on the proposed subdivision. If the department approves the subdivision, the department shall issue a certificate of subdivision approval indicating that it has approved the plans and specifications and that the subdivision is not subject to a sanitary restriction.

(i) new divisions subject to review under chapter 3 or chapter 25;

(ii) divisions or previously divided parcels recorded with sanitary restrictions; or

(iii) divisions or previously divided parcels of land that are exempt from review under 76-3-203, 76-3-207(1)(a), (1)(b), (1)(d), (1)(e), or (1)(f), or 76-25-402(1)(i), (1)(m), or (1)(n);

(e) subject to the provisions of subsection (2), a remainder of an original tract created by segregating a parcel from the tract for purposes of transfer if:

(i) the remainder is served by a public or multiple-user sewage system approved before January 1, 1997, pursuant to local regulations or this chapter; or

(ii) the remainder is 1 acre or larger and has an individual sewage system serving a discharge source that was in existence prior to April 29, 1993, and, if required when installed, the system was approved pursuant to local regulations or this chapter; and

(f) the sale of cabin or home sites as provided for and subject to the limitations in 77-2-318(2).

(2) A subdivision excluded from Consistent with the applicable provisions of chapter 3 must be submitted for review according 50-2-116, a local health officer may require that, prior to the provisions filing of this part, except that the following divisions a plat or parcels, unless the exclusions are used a certificate to of evade survey the subject provisions of this to part, are not subject review under this part for the parcel to review: be segregated from the remainder referenced in subsection (1)(e)(ii), the remainder

(a) the exclusions cited in 76-3-201 and 76-3-204;

(b) divisions made for the purpose of acquiring additional land to become part of an approved parcel, provided that water or sewage disposal facilities may not be constructed on the additional acquired parcel and that the division does not fall within a previously platted or approved subdivision;

(c) divisions made for purposes other than the construction of water supply or sewage and solid waste disposal facilities as the department specifies by rule;

(d) divisions located within jurisdictional areas that have adopted growth policies pursuant to chapter 1 or within first-class or second-class municipalities for which the governing body certifies, pursuant to 76-4-127, that adequate storm water drainage and adequate municipal facilities will be provided; and

(e) subject to the provisions of subsection (3), a remainder of an original tract created by segregating a parcel from the tract for purposes of transfer if:

(i) the remainder is served by a public or multiple-user sewage system approved before January 1, 1997, pursuant to local regulations or this chapter; or

(ii) the remainder is 1 acre or larger and has an individual sewage system serving a discharge source that was in existence prior to April 29, 1993, and, if required when installed, the system was approved pursuant to local regulations or this chapter.

(3) Consistent with A previously divided parcel that meets the applicable provisions of 50-2-116, a local health officer eligibility criteria for an existing exemption from this part may require that, prior to use the filing exemption in lieu of obtaining a plat or a certificate of survey subject to review under this part for subdivision approval if the parcel to be segregated from the remainder referenced in subsection (2)(e)(ii), the remainder include acreage appropriate document, exemption certificate, certificate of survey, or features sufficient to accommodate a replacement drainfield. subdivision plat filed

(4) At the request of the owner, the original certificate of subdivision approval shall be reissued for a parcel previously approved under this part if:

(a) the parcel was subsequently divided without review and approval under this part; and

(b) the unapproved parcels are aggregated to return to the original divided parcel as originally approved.

Review of subdivision application -- land Land divisions excluded from review