Document ID: chunk:federal_register_of_legislation:F2015L00345:reg:18
Version: federal_register_of_legislation:F2015L00345
Segment Type: reg
Provision Reference: reg 18
Character Range: 22951–24960

18  Choosing start day and end day for pre‑treatment periods
 (1) This section applies if the project proponent for the project chooses to use sub‑method 2 or 3 for the purposes of working out abatement for a population in the project under Part 4.

For measurement periods of 1 year
 (2) Before the initial selection for a population in the project, the project proponent must choose the start day and end day for the pre‑treatment period that will be used in relation to every measurement period for the population that is 1 year.
 (3) For sub‑method 2, the pre‑treatment period chosen under subsection (2) must be 12 months.

For measurement periods longer than 1 year
 (4) For sub‑method 2, if the last measurement period for the population in the crediting period for the project will be longer than 1 year:
 (a) before the initial selection for the population, the project proponent must choose the start day and end day for the pre‑treatment period that will be used in relation to that measurement period; and
 (b) the pre‑treatment period must:
 (i) cover the same dates of a year as are covered by the measurement period in a later year; and
 (ii) include the start day of the pre‑treatment period chosen under subsection (2) for the measurement periods that are 1 year.
Example: For subparagraph (b)(i), if the measurement period starts on 6 January 2016 and ends on 17 February 2017, the pre‑treatment period must start on 6 January in a year and end on 17 February the next year.
 (5) For sub‑method 3, if the last measurement period for the population in the crediting period for the project will be longer than 1 year, the project proponent:
 (a) must use the pre‑treatment period, chosen under subsection (2) for the population, for the measurement period; or
 (b) before the initial selection for the population, must choose the start day and end day for the pre‑treatment period that will be used in relation to that measurement period.

Subdivision C—Sub‑methods and explanatory variables