When you have appealed as far as possible, you can consider appealing to the U.S. Supreme Court. If you decide to appeal to the Supreme Court at this stage, the next step is to prepare a petition for certiorari. This is the document the Court will read in order to decide whether to hear a case.
Commercial applications have an even broader spectrum of change-out frequencies. Air filters in restaurants are commonly changed every 4 to 8 weeks depending on the customer traffic and filter type.. Retail chains, strip malls, and other small businesses vary, but usually are in need of a change every 12 weeks.
Video Description. The engine air filter in your 2003 Pontiac Aztek cleans the air that enters your engine. You should change the filter on your Aztek at least once a year or every 20,000 miles, whichever comes first. If you drive in dusty or sandy conditions, you should change your filter more frequently.