The College Board announced that scores from the April SAT will be available starting April 24, one week later than originally planned. Enhanced quality control is the motivation behind the delay. In the Board’s words:
"Our scanning vendor, Pearson Educational Measurement, is implementing enhanced quality controls, which include acclimatizing all answer sheets before scanning to eliminate any possibility of a humidity impact, improving software to identify any answer sheet expansion that might occur due to humidity, and scanning each answer sheet twice, on different days."
The College Board recently announced an embarrassing number of SAT scoring errors that have resulted in at least one law suit.