Hours of Service (HOS) of Drivers; Granting of Exemption; American Pyrotechnics Association (APA)by Emil EstafanousJune 24, 2011 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – JOIN OUR NEWSLETTER Thank you for subscribing. Something went wrong. I agree to have my personal information transfered to MailChimp ( more information ) Join over 3.000 visitors who are receiving our newsletter and learn how to optimize your blog for search engines, find free traffic, and monetize your website. We hate spam. Your email address will not be sold or shared with anyone else.