* The receiving institution: Each college and university has its own policies regarding transfer credit. They may only accept credits from specific institutions, or only accept credits in certain subjects. Some may have stricter GPA requirements for transferred credits.
* The type of credits: General education credits are more likely to transfer than specialized vocational or technical credits. For example, an English composition credit is more likely to transfer than a course on auto mechanics, unless you're pursuing a related major.
* The grade earned: Some institutions may only accept credits earned with a minimum grade (e.g., a "C" or better).
* Course content: Even if the course titles seem similar, the actual content of the courses might differ enough that the receiving institution won't grant credit.
It's crucial to check with the admissions office of the four-year institution *before* you start your associate's degree program. They can provide a list of acceptable transfer courses and articulation agreements (formal agreements between institutions that guarantee transferability of certain credits). You can also work with an academic advisor at your community college to plan your coursework to maximize transferability.