There have been many questions about the Rethinking Equity and Teaching for English Language Learners initiative and Sheltered English Immersion Endorsement courses since the launch of the initiative in 2012. To assist MTA members, we have created a series of Q&A’s and advisories to explain the requirements for Massachusetts teachers and districts.


Questions: Please contact Beth Shevlin at, Gary Gilardi at or the RETELL team at the Department of Elementary and Secondary Education, at

The Basics

Frequently Asked Questions

We’ve compiled answers to frequently asked questions related to RETELL and endorsement courses.

RETELL Requirements and Routes to SEI Endorsement

This chart outlines requirements based on employment and licensure and routes to SEI endorsement. Download the graphic.

Retell Chart

MTA RETELL Advisories

The MTA has issued regular advisories to keep educators up to date on the RETELL initiative and SEI Endorsement courses. The most recent advisories appear first. A complete list of advisories, dating back to 2012, is available here.

Helpful Documents

DESE Documents

Deeper Dive