EX-99.B8.ak.

AMENDMENT TO INVESTOR SERVICES AGREEMENT

The Investor Services Agreement dated June 1, 2009 between Allianz Life Insurance Company of North America and Pacific Investment Management Company LLC is hereby amended by deleting the existing Schedule A, and inserting in lieu thereof the following:

SCHEDULE A

(revised effective September  1, 2012)

Portfolio                                                                                                                           Rate

1.   PIMCO VIT All Asset Portfolio                                                                             25 bps

2.   PIMCO VIT CommodityRealReturn® Strategy Portfolio                                    30 bps

3.   PIMCO VIT Emerging Markets Bond Portfolio                                                    30 bps

4.   PIMCO VIT Global Advantage Strategy Bond Portfolio                                    30 bps

5.   PIMCO VIT Global Bond Portfolio (Unhedged)                                                   30 bps

6.   PIMCO VIT Global Multi-Asset Portfolio                                                              35 bps

7.   PIMCO VIT High Yield Portfolio                                                                              30 bps

8.   PIMCO VIT Low Duration Portfolio                                                                         20 bps

9.   PIMCO VIT Real Return Portfolio                                                                             20 bps

10. PIMCO VIT Total Return Portfolio                                                                            20 bps

11. PIMCO VIT Unconstrained Bond Portfolio                                                              30 bps

12. PIMCO VIT Global Multi-Asset Managed Volatility Portfolio                              35 bps

IN WITNESS WHEREOF, the parties have caused their duly authorized officers to execute this amendment to the investor services agreement, effective as of September 1, 2012.

Allianz Life Insurance Company of North America

By:    /s/ Brian Muench                                                                   

Name:  Brian Muench

Title:    Vice President – Investments

Pacific Investment Management Company LLC

By:     /s/ Jonathan D. Short                                                                   

Name:  Jonathan D. Short

Title:    Head of U.S. Global Wealth Management

AMENDMENT TO PARTICIPATION AGREEMENT

The Participation Agreement, dated December 1, 1999, as amended and novated, by and among, Allianz Life Insurance Company of North America, PIMCO Variable Insurance Trust, and Allianz Global Investors Distributors LLC (as novated from Allianz Global Investors Distributors LLC to PIMCO Investments LLC effective February 14, 2011, via that certain Novation of and Amendment to Participation Agreement dated October 27, 2010) is hereby amended by deleting the existing Schedule A, and inserting in lieu thereof the following:

SCHEDULE A

(revised effective September 1, 2012)

PIMCO Variable Insurance Trust Portfolios:

1.   PIMCO VIT All Asset Portfolio

2.   PIMCO VIT CommodityRealReturn® Strategy Portfolio

3.   PIMCO VIT Emerging Markets Bond Portfolio

4.   PIMCO VIT Global Advantage Strategy Bond Portfolio

5.   PIMCO VIT Global Bond Portfolio (Unhedged)

6.   PIMCO VIT Global Multi-Asset Portfolio

7.   PIMCO VIT High Yield Portfolio

8.   PIMCO VIT Low Duration Portfolio

9.   PIMCO VIT Real Return Portfolio

10. PIMCO VIT Total Return Portfolio

11. PIMCO VIT Unconstrained Bond Portfolio

12. PIMCO VIT Global Multi-Asset Managed Volatility Portfolio

IN WITNESS WHEREOF, the parties have caused their duly authorized officers to execute this amendment to the participation agreement, as amended, as of September 1, 2012.

Allianz Life Insurance Company of North America

By:    __/s/ Brian Muench

Name:  Brian Muench

Title:    Vice President – Investments

PIMCO Variable Insurance Trust

By:     __/s/ Eric D. Johnson

Name:  Eric D. Johnson

Title:    Vice President

PIMCO Investments LLC

By:     __/s/ Jonathan D. Short

Name:  Jonathan D. Short

Title:    Chairman