certified public accountant. n. 1. (Accounting & Book-keeping) (in the US) a public accountant certified to have met state legal requirements. Compare certified accountant.
In the United States, Labor Day is a federal holiday observed on the first Monday of September. It is customarily viewed as the end of the summer vacation season. Many schools open for the year on the day after Labor Day. The holiday is shared with Canada, where it is known as Labour Day.
In the United States and Canada, however, the official holiday for workers is Labor Day in September. After the Haymarket Square riot in May, 1886, US President Grover Cleveland feared that commemorating Labor Day on May 1 could become an opportunity to commemorate the riots.