Common use of Additional Provisions/Additional Defined Terms Clause in Contracts

Additional Provisions/Additional Defined Terms. Optional, if needed for the related Trust Fund or Mega Certificates: The following additional provision(s) apply with reference to the Trust evidenced by this Issue Supplement:/Whenever used in this Issue Supplement, the following word[s] and phrase[s] will have the following meaning[s]:] SCHEDULE B [ARM Megas] EXHIBIT C ISSUE SUPPLEMENT TO MEGA-SMBS MASTER TRUST AGREEMENT Effective January 1, 2009 XXXXXX XXX Guaranteed MBS Pass-Through Securities (“Mega Certificates”) Xxxxxx Xxx Pool Number: _____________ Issue Date Pool Balance: $ Issue Date: _______________ Settlement Date: ________________ (Backed by [Single-Family] [Multifamily] Fixed-Rate Mortgage-Backed Securities) THIS IS AN ISSUE SUPPLEMENT under the Mega-SMBS Master Trust Agreement, effective January 1, 2009 (the “Trust Agreement”), by the Federal National Mortgage Association (“Xxxxxx Xxx”). Capitalized terms in this Issue Supplement have the meanings given to them in the Trust Agreement. The collective terms of the Trust Agreement and this Issue Supplement govern the composition of the Pool identified by the Pool Number appearing above, the issuance and administration of Certificates related to the Pool, and all matters related to the related Trust, and have no applicability to any other Pool or Trust. The Issue Date Pool Balance and Issue Date are stated above. Applicable/Additional Provisions

Additional Provisions/Additional Defined Terms. Optional, if needed for the related Trust Fund or SMBS/Mega Certificates: The following additional provision(s) apply with reference to the Trust evidenced by this Issue Supplement:/Whenever used in this Issue Supplement, the following word[s] and phrase[s] will have the following meaning[s]:] SCHEDULE B C [ARM SMBS / Megas] SCHEDULE OF TRUST ASSETS FOR SMBS - MEGA ISSUE SUPPLEMENT [to be attached or prepared in electronic format pursuant to Section 2.07 of the Trust Agreement] EXHIBIT C D ISSUE SUPPLEMENT TO MEGA-SMBS MASTER TRUST AGREEMENT Effective January 1, 2009 XXXXXX XXX Guaranteed MBS Pass-Through Securities (“Mega Certificates”) Xxxxxx Xxx Pool Number: _____________ Issue Date Pool Balance: $ Issue Date: ________________ Settlement Date: ________________ (Backed by [Single-Family] [Multifamily] Fixed-Rate Mortgage-Backed Securities) THIS IS AN ISSUE SUPPLEMENT under the Mega-SMBS Master Trust Agreement, effective January 1, 2009 (the “Trust Agreement”), by the Federal National Mortgage Association (“Xxxxxx Xxx”). Capitalized terms in this Issue Supplement have the meanings given to them in the Trust Agreement. The collective terms of the Trust Agreement and this Issue Supplement govern the composition of the Pool identified by the Pool Number appearing above, the issuance and administration of Certificates related to the Pool, and all matters related to the related Trust, and have no applicability to any other Pool or Trust. The Issue Date Pool Balance and Issue Date are stated above. Applicable/Additional Provisions

Additional Provisions/Additional Defined Terms. Optional, if needed for the related Trust Fund or SMBS/Mega Certificates: The following additional provision(s) apply with reference to the Trust evidenced by this Issue Supplement:/Whenever used in this Issue Supplement, the following word[s] and phrase[s] will have the following meaning[s]:] SCHEDULE B D [ARM SMBS / Megas] SCHEDULE OF TRUST ASSETS FOR SMBS - MEGA ISSUE SUPPLEMENT [to be attached or prepared in electronic format pursuant to Section 2.07 of the Trust Agreement] EXHIBIT C E ISSUE SUPPLEMENT TO MEGA-SMBS MASTER TRUST AGREEMENT Effective January 1, 2009 XXXXXX XXX Guaranteed MBS Pass-Through Securities (“Mega Certificates”) Xxxxxx Xxx Pool Number: _____________ Issue Date Pool Balance: $ Issue Date: ________________ Settlement Date: ________________ (Backed by [Single-Family] [Multifamily] Fixed-Rate Mortgage-Backed Securities) THIS IS AN ISSUE SUPPLEMENT under the Mega-SMBS Master Trust Agreement, effective January 1, 2009 (the “Trust Agreement”), by the Federal National Mortgage Association (“Xxxxxx Xxx”). Capitalized terms in this Issue Supplement have the meanings given to them in the Trust Agreement. The collective terms of the Trust Agreement and this Issue Supplement govern the composition of the Pool identified by the Pool Number appearing above, the issuance and administration of Certificates related to the Pool, and all matters related to the related Trust, and have no applicability to any other Pool or Trust. The Issue Date Pool Balance Balance, Pass-Through Rate and Issue Date are stated above. Applicable/Additional Applicable Trust Agreement Provisions

Additional Provisions/Additional Defined Terms. Optional, if needed for the related Trust Fund or Mega Certificates: The following additional provision(s) apply with reference to the Trust evidenced by this Issue Supplement:/Whenever used in this Issue Supplement, the following word[s] and phrase[s] will have the following meaning[s]:] SCHEDULE B A [ARM Fixed-Rate Megas] EXHIBIT C B ISSUE SUPPLEMENT TO MEGA-SMBS MASTER TRUST AGREEMENT Effective January 1, 2009 XXXXXX XXX Guaranteed MBS Pass-Through Securities (“Mega Certificates”) (Backed by [Single-Family] [Multifamily] Adjustable-Rate Mortgage-Backed Xxxxxx Xxx Pool Number: [[Initial Pool Accrual Rate %:]] ____________ _____________ Issue Date Pool Balance: $ Issue Date: ________________ Settlement Date: ________________ (Backed by [Single-Family] [Multifamily] Fixed-Rate Mortgage-Backed Securities) THIS IS AN ISSUE SUPPLEMENT under the Mega-SMBS Master Trust Agreement, effective January 1, 2009 (the “Trust Agreement”), by the Federal National Mortgage Association (“Xxxxxx Xxx”). Capitalized terms in this Issue Supplement have the meanings given to them in the Trust Agreement. The collective terms of the Trust Agreement and this Issue Supplement govern the composition of the Pool identified by the Pool Number appearing above, the issuance and administration of Certificates related to the Pool, and all matters related to the related Trust, and have no applicability to any other Pool or Trust. The Issue Date Pool Balance Balance, Initial Pool Accrual Rate and Issue Date are stated above. Applicable/Additional Provisions.