EPA Seeks to Prohibit Conversion of Vehicles into Racecars

Has anyone found the language where this is being done? I have read thru the proposed rule here

www3.epa.gov/otaq/climate/documents/hd-ghg-regs.pdf

For some reason I can't get it to link so you'll have to copy and paste.

and I believe the part on page 3 "PART 85 Control Of Air Pollution From Mobile Sources" is what maybe the issue.

Quote from above
"PART 85— CONTROL OF AIR POLLUTION FROM MOBILE SOURCES 6. The authority citation for part 85 continues to read as follows: Authority: 42 U.S.C. 7401-7671q.
This document is a prepublication version of the EPA regulations, signed by the EPA Administrator, Gina McCarthy, and the Secretary of Transportation, Anthony R. Foxx, on June 19, 2015. We have taken steps to ensure the accuracy of this version, but it is not the official version.
3
Subpart F—Exemption of Clean Alternative Fuel Conversions From Tampering Prohibition
7. Section 85.525 is revised to read as follows: § 85.525 Applicable standards. To qualify for an exemption from the tampering prohibition, vehicles/engines that have been converted to operate on a different fuel must meet emission standards and related requirements as described in this section. follows:(a) The modified vehicle/engine must meet the requirements that applied for the OEM vehicle/engine, or the most stringent OEM vehicle/engine standards in any allowable grouping. Fleet average standards do not apply unless clean alternative fuel conversions are specifically listed as subject to the standards. (a1) If the vehicle/engine was certified with a Family Emission Limit for NOX, NOX+HC, NOX+NMOG, or particulate matter, as noted on the vehicle/engine emission control information label, the modified vehicle/engine may not exceed this Family Emission Limit."

This appears to me like it would require the vehicle to meet the same standards for emissions purpose as it had from the OEM. Of course I am not a Lawyer and this is not in terms that are fully clear to my simple mind. I did send an email to Sema to see if they will reference a part and subpart in the documents as to the driving force behind this. You can bet once I find out I will be contacting every representative that I can.