Be prepared to be asked to put your request in writing and to pay a slight fee. No matter how long ago you went to school your transcript is being stored for when you need it. Even if your previous school is no longer operating, your records are somewhere. Usually another school or state agency will keep the records if a school has closed down. If that is the case, you may call your state's agency for higher education and they will research the situation for you.
Some colleges do have a time-limit policy on accepting credits from other institutions.
This is a question you must ask the academic counselor during your appointment. At Assumption College's Center for Continuing and Professional Education there is no time limit for acceptance of transfer credits. No matter how long ago you took courses, your credits are transferable if you successfully passed the course. Most colleges will look at your past academic performance when considering your application. Usually there is a minimum grade point average that they require in order to accept you into the program.