The difference between direct and indirect supervisor is the presence of the supervisor. Direct supervision means a supervisor is psychically present.
When mailing a certified letter, a person should expect it to take from three to five days to reach its destination. Depending on how long it takes the recipient to pick up the letter, the process can take up to 21 days. People who send certified mail receive a notification to prove that the letter has been received by its recipient.
If a person is not home to sign for a certified letter, a notice  will be lift at their home. A person has 7 days to pick up the  letter, before the post office will try agaâ¦in. Two more attempts  will be made, before it will be returned to the sender.