the senate
The Legislative branch.
when approved by the Senate
Congress
"Dot" is "DOT" - Department of Transportation. So DOT Approved means "Approved by the Department of Transportation".
Confirmation
In the US, the US president nominates, for example, executive branch department heads and US Supreme Court justices. When his or her nominations are approved by the Senate, they take their "appointed" positions. For the most part the nominations are approved by the Senate. With that said, the president does make direct appointments. The position that heads the US Patent Office is a presidential appointment. The Senate is not involved.
It is sometimes very difficult to get laws approved in the presidential system because the president has the right to veto, say no to a law, the law
mama
a treaty
It means something has been approved by the Department of Transportation.
Foods in the US have to be approved by the USDA. (United States Department of Agriculture)
The French government was approved. The Monarch, Louis XIV was dethroned.