As my nickname implies, I am involved in CAP. I am currently a Squadron Commander, a Mission Pilot, Glider Tow Pilot, Ground Team Leader, in the CD program, and participate in homeland security missions. Having said all this, every Wing filtering down to the squadrons have their own personalities and mission. My suggestion to you is visit a few squadrons and talk to the members. Some squadrons are very ES (Emergency Services) oriented while others focus on Cadet Programs, while still others focus on professional development.
As to the requirements to participate in different things in CAP here is a brief overview. The numbers given by Steve are not correct unless Utah has a supplement to the regulations.
To get started after you join you'll need to complete some basic courses that are all now online. Level 1 is an introduction to CAP. CPPT which is the Cadet Protection course, and OPSEC which is a quick 5 minute online deal about security of information.
If all you want to do is fly you'll need to complete what is called a Form 5 checkride in the plane you would like to fly. It gets a little confusing here because there are 4 catagories of airplanes based on performance plus a separate one for the G1000 C182's. To fly a C172, you only need to have your PPL. For a high performance aircraft, you will need to have 100 hrs of time plus 10 hours and 25 take-offs and landings in a high performance aircraft. The G1000 will require you to have completed the standard Cessna factory training called FITS then require a separate checkride in that aircraft. My squadron has a C182RG so a yearly Form 5 checkride in that counts towards a straight leg 182 and 172.
As a CAP pilot, as long as you have 225 PIC hours you can then become a Cadet Orientation Pilot. The cadets are entitled to 5 O-Flights, each lasting approximately 1 hr. The flights follow an established syllabus.
With 500 hours you can become a CAP glider tow pilot.
Getting into ES requires quite a few courses which make sense so you know how to operate in a standard FEMA designed system of mission management that all agencies use. These include IC100, IC200, and IC700 FEMA ICS (Incident Command System) courses. Once done you will get your first ES rating which is called GES (General Emergency Services).
There are two general routes to follow in the ES side of CAP. One is air and the other is ground. Since we are pilots here lets focus on that. There are four aircrew ratings; Transport Mission Pilot, Mission Scanner, Mission Observer, and Mission Pilot. The first rating you would work towards is Mission Scanner. It is very easy to get this rating especially if you are a pilot. This is also the pre-requisite for Mission Observer and Mission Pilot. Most pilots after getting their MS rating will work towards MO & MP at the same time. MP requires you to have 175 PIC hours to begin the training and 200 PIC hours to get the rating. A Transport Mission Pilot requires 100 PIC hours and allows you to move people and equipment and fly High Bird (airborn communication repeater). It only requires the time and a GES rating.
There is paperwork but a lot is now going online including in a couple of months being able to get your own flight releases online instead of trying to find an FRO (Flight Release Officer) over the phone.
It is very confusing at first but a good squadron will provide the expertise and support to get you where you want to be. Don't be affraid to check out a few squadrons and see where their priorities are. Also, don't be affraid of what seems to be a Cadet or Composite Squadron. Many of them are very active flyers and very active in ES.
There is a lot of information online and a good place to start is
www.gocivilairpatrol.com
So, what are some of the benefits of being in CAP? It is a great way to volunteer your time to the community and our country doing something important that saves lives and helps to protect us. If you are a CAP pilot and have been in for 1 year, you can get training towards an advanced pilot rating (IFR, Commercial, CFI, etc.). You will learn leadership skills or hone the ones you already have. There are lots of ways to get free flying while doing something instead of just putzing around in the sky. The rental rates on the aircraft are very inexpensive if all you just want is to go fly. The cadets look up to you and the satisfaction of putting them in a plane and having them fly it for an hour while doing the tasks from the syllabus is very rewarding.
Hope this helps get you interested enough to visit some squadrons.