Amendment to Participation Agreement Addendum

Effective as of March 31, 2015

Franklin Templeton Variable Insurance Products Trust

Franklin/Templeton Distributors, Inc.

Principal Life Insurance Company

Principal National Life Insurance Company

Princor Financial Services Corporation

Franklin Templeton Variable Insurance Products Trust (the “Trust”), Franklin/Templeton Distributors, Inc. (the “Underwriter,” and together with the Trust, “we,” “our,” or “us”), Principal Life Insurance Company, and Princor Financial Services Corporation, your distributor (collectively, the “Company” “you” or “your”), on your behalf and on behalf of certain Accounts, (individually a “Party”, collectively, the “Parties”) have previously entered into an Amended and Restated Participation Agreement dated November 1, 2007, as amended (the “Agreement”).

WHEREAS, the Parties have previously entered into an Addendum to the Agreement (“the Addendum”) dated May 1, 2011, to facilitate the summary prospectus delivery options pursuant to Rule 498 of the Securities Act of 1933 as amended, (“Rule 498”).

WHEREAS, Principal National Life Insurance Company has since been added as a party to the Agreement and the Parties desire to amend this Addendum to include Principal National Life Insurance Company as a Party.

NOW, THEREFORE, in consideration of the mutual covenants herein contained, which consideration is full and complete, the Parties agree as follows:

1. New paragraphs 4.7.1 through 4.7.3, as set forth in Attachment A of this Addendum, are added at the end of the existing paragraphs of Section 4 of the Agreement. This Addendum constitutes the new procedures referred to in Section 6 of the Agreement, and provides additional requirements in connection with the authorized use of the summary prospectus under Rule 498.

2. Unless otherwise indicated, the terms defined in the Agreement shall have the same meaning in this Addendum. All other terms and provisions of the Agreement not amended herein, including, but not limited to the indemnification provisions, shall remain in full force and effect and will apply to the terms of this Addendum as applicable.

3. This Addendum will terminate automatically upon the termination of the Agreement. It may also be terminated by mutual written agreement of the Parties to this Addendum at any time, and by any Party to this Addendum upon no less than 30 days’ advance written notice to the other Parties to this Addendum.

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IN WITNESS WHEREOF, each of the Parties has caused their duly authorized officers to execute this amendment to Addendum effective as of March 31, 2015.

The Trust: Only on behalf of each Portfolio listed on Schedule C of the Agreement.	Franklin Templeton Variable Insurance Products Trust By: /s/ Karen L. Skidmore Name: Karen L. Skidmore Title: Vice President
The Underwriter:	Franklin/Templeton Distributors, Inc. By: /s/ Christopher A. Felchlin Name: Christopher A. Felchlin Title: Vice President
The Company:	Principal Life Insurance Company By: /s/ Tony Lengeling Name: Tony Lengeling Title: AVP - Product Development
	Principal National Life Insurance Company By: /s/ Tony Lengeling Name: Tony Lengeling Title: AVP - Product Development
The Distributor:	Princor Financial Services Corporation By: /s/ Marty Richardson Name: Marty Richardson Title: Managing Director - Broker/Dealer Services

Attachment A to Participation Agreement Addendum

4.7.1For purposes of this Addendum, the terms Summary Prospectus and Statutory Prospectus shall have the same meaning as set forth in Rule 498.

4.7.2We agree that the hosting of such Trust current Summary Prospectuses and other most recent documents required by Rule 498(e)(1) (“Trust Documents”), at the url website address we indicate on each Summary Prospectus (“Trust Documents Site”), is designed to lead Contract owners directly to the Trust Documents Site and comply with all applicable requirements of Rule 498(e) and (f)(3). We also agree that we will be responsible for compliance with the provisions of Rule 498(f)(1) involving Contract owner requests for additional Trust Documents made directly to us. While we are not required to provide the Summary Prospectus delivery option for any Portfolio (or any Portfolio class of shares), should we decide to discontinue such option(s), the Underwriter agrees to give you no less than sixty (60) days’ advance written notice and continue the hosting of the Trust Documents Site required by Rule 498(e)(1).

4.7.3The Parties agree that you are not required to use the Summary Prospectus delivery option. If you elect to use the Trust’s Summary Prospectuses to satisfy your Trust prospectus delivery requirement, you agree to do so in compliance with the Agreement and Rule 498, and to give us no less than sixty (60) days’ advance written notice of such intended use. You also agree that any binding together of Summary Prospectuses, Statutory Prospectuses, and other materials will be done in compliance with Rule 498(c). You further agree that you will be responsible for compliance with the provisions of Rule 498(f)(1) involving Contract owner requests for additional Trust Documents made directly to you, or one of your affiliates or third-party providers. In connection with your distribution of any Portfolio Summary Prospectus, you agree to be solely responsible for the maintenance of website links to the Trust Documents Site. You acknowledge that the Trust Documents Site is transmitted over the Internet on a reasonable efforts basis, and we do not warrant or guarantee its reliability. You agree that you will comply with any policies concerning Trust Documents Site usage that we provide to you, including any posted website Terms of Use.