South Carolina's economic advisers officially certified Friday a windfall in tax collections, giving legislators an additional $300 million in discretionary spending.

The Board of Economic Advisors voted unanimously to recognize a total of $415 million in revenues that were higher than previously expected. The additional revenue includes what flowed into state coffers through April 30 and how that affects projections for the fiscal year starting July 1.

"It's very good news," said Frank Rainwater, director of the state's Revenue and Fiscal Affairs Office. "The economy continues to improve."