1 Girls start having periods at different times depending on how quickly they are developing.  If a girl has not had her first period by the time she is 16, this is still probably normal, but it would be worth checking with a doctor.
IETMS stands for Interactive Electronic Technical Manual System. Israeli English Teachers' Network. Institution of Engineering and Technology Northern Ireland. Institute of Engineering Technology of Ontario (Canada) Interagency Environmental Technology Office (Washington, DC) Industrial Effluent Treatment Plant.
IEP is just a shorter way of saying â I ndividualized E ducation P rogramâ. Some people think IEP stands for Individualized Education Plan, but no â the âPâ stands for Program. Nonetheless, an IEP is a plan. So think of it this way: the âPâ in âIEPâ stands for âProgramâ but itâs really both a program and a plan.