Seasoned test:
Land double with blind outside of marks. You will shoot in the direction before running the blind.
Water double with blind outside of marks. You will shoot same as land blind.
Walk up or walkout. You can say 'SIT' or whistle when bird is thrown.
You are not penalized for cheating, etc.
You are allowed 1 controlled break
You will have a diversion on either land or water. Usually thrown significantly off the line the dog is coming in on.
No honor
Your dog can be on lead all the way to the line/bucket. Take lead off, have him sit, load your gun, and blow duck call to start test.
You may talk to your dog while at the line. You will likely be marked down some for trainability if you continually say 'Sit' and dog is rowdy.
Senior test:
Land double with blind. Diversion shot in the field to setup the blind when dog is returning from last mark or while walking to the line(if blind is run before marks)
Water double with blind. Diversion shot in the field to setup the blind when dog is returning from last mark or while walking to the line
Walk up or walkout. You can say 'SIT' or whistle when bird is thrown.
You are not penalized for cheating, etc.
Controlled breaks are at judges' discretion. You 'may' get called back, but I wouldn't count on it.
No diversion bird. Just diversion shot for the blinds.
Dog must honor on 1 of the series
Your dog must come off lead somewhere between holding blind and line. Judges usually have orange tape out where they want the dog off lead and you are under judgement.
Once you call for the birds, you may not say anything to the dog until the judge calls your number or says 'dog'. Any verbal communication is considered a 'controlled break'.
Typically(at least in the tests I have run), an AKC senior test is usually significantly tougher than an HRC seasoned test. Marks/blinds are longer with more factors. An AKC seasoned test is usually more in line with an HRC finished test, but with 2 marks instead of 3. Currently, the young dog I'm training is running HRC finished and AKC senior. He's doing master and Q level work in training. Just a word of advice, you want your dog running well beyond the level they are being tested at in training before you compete. If not, you are asking for failure.
Here's a link that compares the requirements for all 3 levels of testing in both HRC and AKC:
https://crosscreekkennel.com/htexp.htm
Hope this helps.