
3
Internal control environment
• Understand the design and implementation of key controls surrounding
all significant financial statement accounts and business processes
• Understand the design and implementation of controls over compliance
requirements
• Assess information technology general controls and application controls
• Test sample transactions of the capital assets related systems, payroll, cash
disbursements, leases, and environmental reserve
• Treasury and investment, debt, cash, budget, third party transactions and
financial close and reporting cycles tested through observations, inquiries
and walkthroughs
Management estimates
• Pollution remediation obligation accruals, legal and insurance reserves,
allowance for doubtful accounts, grant-in-aid receivables, arbitrage
liabilities, actuarial valuations for OPEB liability and for the
Warehousemen Pension Trust amounts and disclosures
Bonds and related accounts
• Arbitrage liability, capitalized interest, discounts and premiums, new debt
issuance, debt refunding, and compliance with covenants
Areas of Audit Effort