IMPORTANT: On September 26, 2014, OSHA published a final rule that extends the deadline for crane operator certification in the cranes standard at 29 CFR 1926 Osha 10 hour construction exam answers. 1427 for 3 years, to November 10, 2017 (published in the Federal Register). The final rule also extends the employer's duty to ensure that . Osha 10 hour construction exam answers. .