The bill aims to revise sanitation laws related to subdivisions by prohibiting local boards of health from adopting regulations that would permit a mixing zone to encroach on adjacent properties. It clarifies that the Sanitation in Subdivisions Act does not apply to certain drainfield mixing zones. Additionally, the bill amends existing definitions and provisions in Sections 50-2-116 and 76-4-102 of the Montana Code Annotated (MCA) to reflect these changes.

Key amendments include the insertion of language that prohibits the construction of subsurface wastewater treatment systems on parcels created after March 30, 2011, if the associated mixing zone would encroach onto adjacent property. Furthermore, the definition of "proposed drainfield mixing zone" is revised to specify that it applies only to parcels created after the same date, while also clarifying that mixing zones approved before March 30, 2011, are exempt from this regulation. These changes are intended to enhance public health protections and ensure that local health regulations do not infringe on adjacent property rights.

Statutes affected:
LC Text: 50-2-116, 76-4-102
HB0180_1(1): 50-2-116, 76-4-102
HB0180_1(10): 50-2-116, 76-4-102
HB0180_1(2): 50-2-116, 76-4-102
HB0180_1(3): 50-2-116, 76-4-102
HB0180_1(4): 50-2-116, 76-4-102
HB0180_1(5): 50-2-116, 76-4-102
HB0180_1(6): 50-2-116, 76-4-102
HB0180_1(7): 50-2-116, 76-4-102
HB0180_1(8): 50-2-116, 76-4-102
HB0180_1(9): 50-2-116, 76-4-102
HB0180_1: 50-2-116, 76-4-102
HB0180_2(1): 50-2-116, 76-4-102
HB0180_2(10): 50-2-116, 76-4-102
HB0180_2(11): 50-2-116, 76-4-102
HB0180_2(2): 50-2-116, 76-4-102
HB0180_2(3): 50-2-116, 76-4-102
HB0180_2(4): 50-2-116, 76-4-102
HB0180_2(5): 50-2-116, 76-4-102
HB0180_2(6): 50-2-116, 76-4-102
HB0180_2(7): 50-2-116, 76-4-102
HB0180_2(8): 50-2-116, 76-4-102
HB0180_2(9): 50-2-116, 76-4-102
HB0180_2: 50-2-116, 76-4-102
HB0180_X(1): 50-2-116, 76-4-102
HB0180_X(2): 50-2-116, 76-4-102
HB0180_X: 50-2-116, 76-4-102