### Question
What does new mean?


### Answer
**New** has the following meaning in *40 CFR § 87.1*:

> an engine or vehicle that is not covered by a certificate of conformity issued under this part at the time of importation, and that is manufactured after the effective date of a regulation issued under this part which is applicable to such engine or vehicle (or which would be applicable to such engine or vehicle had it been manufactured for importation into the United States)

#### Citation:
  - *40 CFR § 87.1*
  - Heading: **Title 40—Protection of Environment > PART 87—CONTROL OF AIR POLLUTION FROM AIRCRAFT AND AIRCRAFT ENGINES > PART 87—CONTROL OF AIR POLLUTION FROM AIRCRAFT AND AIRCRAFT ENGINES > Subpart A—General Provisions > CHAPTER I—ENVIRONMENTAL PROTECTION**

