This supplement contains all adaptations made by countries to the international version of the TEDS-M questionnaires under careful supervision of and approval by the TEDS-M International Study Center at Michigan State University. This information provides users of the TEDS-M International Database with a guide to evaluate the availability of internationally comparable data for use in secondary analyses. The adaptations to questionnaires are presented in four sections: Section 1: Institutional Program Questionnaire; Section 2: Educator Questionnaire; Section 3: Future Teacher Questionnaire (Parts A, B, and D); and Section 4: Adaptations to questions about education levels (ISCED classification). Each section contains adaptations specific to individual education systems followed by general or common cultural adaptations and variables. The listed adaptations include questions that countries were required to adapt, questions that were not administered, and questions that countries modified to suit their national context. [For the main report, "TEDS-M 2008 User Guide for the International Database," see ED542383. For related reports, see "TEDS-M 2008 User Guide for the International Database. Supplement 1: International Version of the TEDS-M Questionnaires" (ED542382), "TEDS-M 2008 User Guide for the International Database. Supplement 3: Variables Derived from the Educator and Future Teacher Data" (ED542385), and "TEDS-M 2008 User Guide for the International Database. Supplement 4: TEDS-M Released Mathematics and Mathematics Pedagogy Knowledge Assessment Items" (ED542384).] [This paper was edited with Maria Teresa Tatto.]