•   Investors can calculate the amount of interest to be distributed (or accrued, in the case of the Accrual Class) on each Class of Securities for any Distribution Date by using the Class Factors published in the preceding month. See " – Class Factors" below. Categories of Classes For  purposes  of  interest  distributions,  the  Classes  will  be  categorized  as  shown  under "Interest Type" on the front cover of this Supplement. The abbreviations used on the front cover  are  explained  under  "Class  Types"  in  Appendix  I  to  the  Multifamily  Base  Offering Circular. Accrual Period The Accrual Period for each Regular Class is the calendar month preceding the related Distribution Date. Fixed Rate Classes The Fixed Rate Classes will bear interest at the per annum Interest Rate shown on the front cover of this Supplement. Weighted Average Coupon Classes The Weighted Average Coupon Classes will bear interest at per annum Interest Rates based on Group 1 WACR or Group 2 WACR as shown under "Terms Sheet – Interest Rates" in this Supplement. The Trustee's determination of these Interest Rates will be final except in the case of clear error. Investors can obtain Interest Rates for the current and preceding Accrual Periods from Ginnie Mae's Multiclass Securities e-Access located on Ginnie Mae's website ("e-Access") or by calling the Information Agent at (800) 234-GNMA. Accrual Class Class Z is an Accrual Class. Interest will accrue on the Accrual Class and be distributed as described under "Terms Sheet – Accrual Class" in this Supplement. Principal Distributions The Principal Distribution Amount or the Adjusted Principal Distribution Amount for each Security  Group,  as  applicable,  and  the  Accrual  Amount  will  be  distributed  to  the  Holders entitled  thereto  as  described  above  under  "Terms  Sheet – Allocation  of  Principal"  in  this Supplement. Investors  can  calculate  the  amount  of  principal  to  be  distributed  with  respect  to  any Distribution Date by using the Class Factors published in the preceding and current months. See "– Class Factors" below. Categories of Classes For purposes of principal distributions, the Classes will be categorized as shown under "Principal Type" on the front cover of this Supplement. The abbreviations used on the front cover  and  in  the  Terms  Sheet  are  explained  under  "Class  Types"  in  Appendix  I  to  the Multifamily Base Offering Circular. S-21