If you look closer you will see that they re-signed a bill to further ban production, of course, this new ban is only until standards can be put in place to produce three wheeled ATV's.
The Consent Decree Act expired in April 27, 1998. However, it only applied to manufacturers involved in the case. Those manufacturers included Honda, Yamaha, Suzuki, Kawasaki and Polaris. No other manufacturer was bound by the Consent Decree Act until Arctic Cat joined on Sept 27, 1996.
On September 9, 1998, the ATV Action Plan was introduced. It basically extended the former Consent Decree Act on a Voluntary basis.
Yamaha, Kawasaki, American Suzuki, Polaris and Arctic Cat have voluntary agreed to participate. However, Arctic Cat has only agreed for 5 years. Also, any company can withdraw from the agreement with a 60-day notice.
Neither the Consent Decree Act nor the ATV Action Plan has ever applied to any other manufacturer.
In August of '08, the CPSC submitted proposition bill H.R.4040. A bill primarily concerned with lead paint in children's toys. However, hidden in the pages and pages and pages of this bill, was a little known paragraph, effectively banning production 3-wheelers indefinitely. However, this bill which has since been passed into law, only concerns production-based 3-wheelers. It does not include prototypes, conversions or custom one-off 3-wheelers.
The bill also states that this is a temporary ban until industry standards can be set.