Here is what is going to happen today on the floor of the U.S. House of Representatives to get H.R. 2749, the Food Safety Enhancement Act of 2009, passed:

After the House gets through with the Defense Appropriations Act of 2010, it will turn to House Resolution 691, the rule for consideration of H.R. 2749. There will be one hour of debate on the rule. 

The rule provides that in lieu of the amendment in the nature of a substitute recommended by the Committee on Energy and Commerce, the amendment in the nature of a substitute printed in the Rules Committee report accompanying the resolution shall be considered as adopted and the bill, as amended, shall be considered as read.  The rule provides one motion to recommit the bill with or without instructions. 

It is possible there will be a vote on a Democratic motion ordering the previous question; and then on the adoption of the rule.

Once it adopts the rule, the House will again consider H.R. 2749, the Food Safety Enhancement Act of 2009. There will be one hour of debate on the bill. There could be a Republican motion to recommit the bill (send it back to committee). Today, the vote on final passage will require only a majority to support it.