You also avoid the passive and use fewer words. We review your loan application to ensure that you have followed our procedures. The Office of Consumer Affairs will process your application within 30 days after receipt. We'll process your application within 30 days of receiving it. You'll save words and make your regulation more readable.
Active voice is the best way to identify who is responsible for what action.
In an active sentence, the person or agency who is taking an action is the subject of the sentence. In a passive sentence, the person or item that is acted upon is the subject of the sentence. Passive sentences often do not identify who is performing the action. The lake was polluted by the company. The company polluted the lake.