Can I swap an older v5 engine (early 2000's) into a 2009 Audi A4?

What is your question?

The EPA has changes to the clean air act. I will paste them here. Does this mean I can't use an older engine or that I would just have to install equipment to make it meet the '09 standards? For light-duty vehicles, installation of a light-duty eng~ne into a different light-duty vehicle by any person would be considered tampering unless the resulting vehicle is identical (with regard to all emission related parts, engine design parameters, and engine calibrations) to a certified configuration of the same or newer model year as the vehicle chassis, or if there is a reasonable basis for knowing that emissions are not adversely affected as described in Memo 1A. The appropriate source for technical information regarding the certified configuration of a vehicle of a particular model year is the vehicle manufacturer.