Economic activity rose “slightly” since mid-January but businesses across the country reported uncertainty surrounding new policies from the Trump administration, particularly on tariffs, the Federal Reserve said in its Beige Book survey of regional business contacts.

The Federal Reserve published its Beige Book on Wednesday, providing valuable insight into the US economy. The report compiles anecdotal evidence from the Federal Reserve's 12 regional districts, offering a real-world perspective beyond official statistics.

Eight of the 12 Federal Reserve districts reported flat or slightly negative growth in February, according to the central bank’s survey of regional economies known as the Beige Book, released Wednesday.