It depends on what school you are applying to. At St. Vincent's all your non-science classes (psych, soc, philosophy etc) don't have a time limit. However your English does. I believe if you took english over 15 years ago you must take a compentency test in order to use it as a transfer credit.
I don't think the community colleges have time limits for non-science based classes. I went to NVCC for a while and I'm almost certain they had no time limits