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INTERNAL AUDIT REPORT 

LEASE AND CONCESSION AGREEMENT AUDIT 

ATZ, Inc. dba Doug Fox Parking 

October 1, 2013  June 30, 2016 

ISSUE DATE: July 21, 2017 
REPORT NO. 2017-10



ATZ, Inc. dba Doug Fox Parking                                                                INTERNAL AUDIT 
October 1, 2013  June 30, 2016 

TABLE OF CONTENTS 


TRANSMITTAL LETTER.................................................................................................................................................. 3 
EXECUTIVE SUMMARY ................................................................................................................................................. 4 
BACKGROUND ............................................................................................................................................................... 5 
FINANCIAL HIGHLIGHTS .............................................................................................................................................. 5 
AUDIT SCOPE AND METHODOLOGY ............................................................................................................................ 5 
CONCLUSION ................................................................................................................................................................ 6 












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ATZ, Inc. dba Doug Fox Parking                                                                INTERNAL AUDIT 
October 1, 2013  June 30, 2016 

TRANSMITTAL LETTER 
Audit Committee 
Port of Seattle 
Seattle, Washington 

We have completed an audit of ATZ, Inc. dba Doug Fox Parking. We reviewed information for the
period October 1, 2013  June 30, 2016. 
We conducted this performance audit in accordance with Generally Accepted Government Auditing
Standards and the International Standards for the Professional Practice of Internal Auditing. Those
standards require that we plan and perform the audit to obtain sufficient, appropriate evidence to
provide a reasonable basis for our findings and conclusions based on our audit objectives. We believe
that the evidence obtained provides a reasonable basis for our findings and conclusions based on our
audit objectives. 
We extend our appreciation to the management and staff of the Aviation Commercial Management
Department, and Accounting and Financial Reporting Department for their assistance and cooperation
during the audit. 


Joyce Kirangi, CPA, CGMA 
Director, Internal Audit 

AUDIT TEAM                                RESPONSIBLE MANAGEMENT TEAM 
Margaret Songtantaruk, CFE, CB, Lead 
Lance Lyttle, Managing Director - Aviation 
Auditor 
Dandan Wang, CPA, CIA, Auditor-In-Charge   James Schone, Director AV Commercial Management 
James Jennings, Manager Aviation Property 





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ATZ, Inc. dba Doug Fox Parking                                                                INTERNAL AUDIT 
October 1, 2013  June 30, 2016 
EXECUTIVE SUMMARY 

AUDIT OBJECTIVES AND SCOPE 
The purpose of the audit was to determine whether: 
1.  Port management monitoring controls were effective to ensure: 
ATZ, Inc. dba Doug Fox Parking (ATZ) reported concession fees were complete, properly
calculated, and remitted timely to the Port. 
2.  Port and ATZ complied with significant terms of the lease and concession agreement. 
We reviewed and analyzed records for the Agreement period October 1, 2013 through June 30, 2016. 

BACKGROUND 

ATZ, Inc. dba Doug Fox Parking (ATZ) operates the Airport Parking Lot located north of the Airport
under the current Lease and Concession Agreement, which is effective from October 1, 2013 through
June 30, 2019. ATZ has been operating the lot since 1970s. Aviation Commercial Management, in
conjunction with Accounting and Financial Reporting (AFR), is primarily responsible for administering
and monitoring the agreement to ensure ATZ complies with the agreed-upon provisions. 
ATZ pays the Port a Minimum Annual Guarantee (MAG) during the agreement term. In addition, ATZ
pays a percentage fee, to the extent that it is higher than the monthly payment of the MAG based on
gross receipts of the parking services.

AUDIT RESULT 
Port management monitoring controls were effective. ATZ reported concession fees were complete,
properly calculated, remitted timely to the Port, and complied with the significant terms of the lease
and concession agreement. 





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ATZ, Inc. dba Doug Fox Parking                                                                INTERNAL AUDIT 
October 1, 2013  June 30, 2016 

BACKGROUND BACKGROUND 
Lease agreement number 001718 authorizes ATZ, Inc. dba Doug Fox Parking to operate the north
parking lot. 
The terms of the agreement provide for increments of Minimum Annual Guarantee (MAG) for the five
year terms payable to the Port at $1,500,000, $2,500,000, $2,600,000, $2,700,000, and $2,800,000,
respectively.  The agreement requires a concession fee equal to 55% of parking gross receipts for the
fiscal year ended 2015, and 60% of parking gross receipts for the fiscal year ended 2016. 
The following are the only agreed-upon deductions allowed in the agreement: 
1. Refunds actually granted and made 
2. Discounts actually granted 
3. Sales tax or other excise tax collected by Lessee as agent for the taxing body 
4. The amount of any rent attributable to a sublease 
The MAG is due and payable in advance and/or by the first day of every month. The percentage fee is
due on or before the 15th day of each month for the preceding month. If payments are not received
within ten days after the due date, the Port will charge Lessee a late fee of 5% of the overdue amount,
and accrue interest at the rate of 18% per year from the due date until paid. 

FINANCIAL HIGHLIGHTS FINANCIAL HIGHLIGHTS 
FINANCIAL HIGHLIGHTSFINANCIAL HIGHLIGHTS 
KEY FINANCIAL RESULTS FOR ATZ, Inc. dba DOUG FOX PARKING 
AGREEMENT PERIOD        REPORTED GROSS
REVENUE        CONCESSION FEES 
10/1/2013  6/30/2015                      $7,033,359             $3,868,347 
7/1/2015  6/30/2016                        4,321,177              2,592,706 
TOTAL                                   $ 11,354,536             $6,461,053 

AUDIT SCOPE AND METHODOLOGY 

We reviewed information for the period October 1, 2013  June 30, 2016, utilizing a risk-based
approach from planning to examination. We gathered information through document requests,
research, interview, observations, and data analysis. 
We applied detailed audit procedures to areas with the highest likelihood of significant negative
impact as follows: 
1.  To determine whether Port management monitoring controls were effective to ensure ATZ reported
concession fees were complete, properly calculated, and remitted timely to the Port, we: 

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ATZ, Inc. dba Doug Fox Parking                                                                INTERNAL AUDIT 
October 1, 2013  June 30, 2016 

Reviewed the agreement to identify significant agreement provisions. 
Gained an understanding of and documented Port management key controls over insurance,
surety, and AFR billing processes. 
Tested effectiveness of the key controls to ensure: 
o   Monthly concessions were reviewed for accuracy prior to Lessee billings. 
o   Annual concession reconciliation was performed to ensure the reported gross sales
were accurate. 
o   Surety was in compliance with the terms of the lease agreement. 
o   Insurance terms were complied with. 
Analyzed the Port records to determine timeliness of the submitted MAG and concession
percentage fee. 
2.  To determine whether the Port and ATZ complied with significant terms of the lease and concession
agreement, we: 
Reviewed the Lessee's chart of accounts to determine whether all applicable revenue
accounts were included in the revenue reported to the Port. 
Conducted three-way reconciliation among the Lessee's trial balances, P&L, and reported
revenue to the Port to determine if the reported revenue was complete and accurate. 
Performed analytical procedures on monthly concession billings to identify months with
significant revenue decreases from previous year. 
Tested four months with significant revenue decreases to ensure reported revenue was
complete and accurate: 
o   Reconciled the Lessee's detailed transaction totals to P&L, and to the B&O tax returns.
o   Reconciled the Lessee's detailed transactions to the bank statements. 
Verified that the voided transactions were legitimate and properly approved. 

CONCLUSION 
CONCLUSION 

Port management monitoring controls were effective. ATZ reported concession fees were complete,
properly calculated, and remitted timely to the Port, and complied with the significant terms of the
lease and concession agreement. 

AUDIT SCOPE AND METHODOLOGY 




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