89.913—What provisions apply to engines certified under the motor-vehicle program?
         You may use the provisions of  40 CFR 1039.605 to introduce new nonroad engines into commerce if they are already certified to the requirements that apply to compression-ignition engines under  40 CFR parts 85 and 86. However, when using the provisions of  40 CFR 1039.605, references to this  part 89 or sections in this part shall be used instead of references to  40 CFR part 1039 or sections in that part.