Here's a listing of the names used to describe English-language programs.
The teaching strategies are similar and the goals are the same, but the names used to describe English-language programs vary from state to state:
LEP: Limited English Proficiency
ESL: English as a Second Language (Considered inaccurate by many teachers, because many immigrant and refugee students come to the country already fluent in multiple languages)
ESOL: English for Speakers of Other Languages
ELL: English Language Learners
SDAIE: Specially Designed Academic Instruction in English