As an option to the regular small fleet compliance requirements, very small fleets with 500 hp or less can comply with the following compliance plan.
|Compliance Date Jan 1||Percent of Fleet that Must Have Tier 2 or Higher Tier Engine|
Be advised that rounding provisions are different here. Under the regular small fleet option you would be required to apply BACT to a piece of equipment if a remaining BACT hp obligation is one-half or more the hp any nonexempt piece of equipment. Under this option if you any obligation greater than zero would require you apply upgrade another machine to Tier 2 or higher until you equal or exceed your obligation.
For example, assume your total fleet hp is425 hp. By Jan 1, 2019 25% of that hp or 106.25 hp would have to be Tier 2 or higher. Say you replace a Tier 1 machine rated at 106 hp with a Tier 2 machine at 106 hp. That would leave an obligation of 0.25 hp. Under this option you be required to replace another Tie r0/1 machine until your obligation balance is zero or less.