Permission Forms:
Do you need an extra permission slip for a day trip?
Probably not. The only time you'd do this is if you are doing a high risk activity or a "sensitive" topic activity. See the safety activity checkpoints for more info:
Do check to make sure you have the volunteer ratios correct because activities are different than meetings.
Short Trip Application Forms:
Do you need to submit an application for a day trip?
Nope! (unless it's a high risk activity or a "sensitive" topic ) - then you'd fill out the "Application for High Risk Activities or Sensitive Topics " form
Do you have to collect overnight permission forms prior to submitting your application?
No, I always assume that as long as you've collected them prior to departure, you're good.