CRITICAL ACCOUNTING POLICIES AND ESTIMATES

In May 2002, the Securities & Exchange Commission (SEC) issued a proposed rule: Disclosure in Management's Discussion and Analysis about the Application of Critical Accounting Policies. Although the SEC has not issued a final rule yet, the following discussion has been prepared on the basis of the guidelines in the SEC rule proposal. If adopted as proposed, the rule would require disclosures connected with "estimates a company makes in applying its accounting policies." However, such discussion would be limited to "critical accounting estimates," or those that management believes meet two criteria in the proposal: "First, the accounting estimate must require a company to make assumptions about matters that are highly uncertain at the time the accounting estimate is made. Second, different estimates that the company reasonably could have used for the accounting estimate in the current period, or changes in the accounting estimate that are reasonably likely to occur from period to period, must have a material impact on the presentation of the company's financial condition, changes in financial condition or results of operations." Besides estimates that meet the "critical" estimate criteria, the company makes many other accounting estimates in preparing its financial statements and related disclosures. All estimates, whether or not deemed critical, affect reported amounts of assets, liabilities, revenues and expenses as well as disclosures of contingent assets and liabilities. Estimates are based on experience and other information available prior to the issuance of the financial statements. Materially different results can occur as circumstances change and additional information becomes known, even from estimates not deemed "critical" under the SEC rule proposal.

Revenue Recognition

We recognize revenue as services are performed or on product sales at the time title transfers to the customer. We record estimated reductions to revenue for customer programs and incentive offerings including pricing arrangements, promotions and other volume-based incentives at the time of sale. Depending on market conditions, we may increase customer incentive offerings, which could reduce sales and gross profit margins at the time the incentive is offered.

Valuation Allowances and Accrued Liabilities

We estimate sales returns and allowances by analyzing historical returns and credits, and apply these trend rates to the most recent 12 months' sales data to calculate estimated reserves for future credits. We estimate the allowance for doubtful accounts by analyzing accounts receivable balances by age, applying historical write-off trend rates to the most recent 12 months' sales, less actual write-offs to date. In addition, our estimates also include separately providing for 100 percent of specific customer balances when it is deemed probable that the balance is uncollectible. Actual results could differ from these estimates under different assumptions.

Estimates used to record liabilities related to pending litigation and environmental claims are based on our best estimate of probable future costs. We record the amounts that represent the points in the range of estimates that we believe are most probable or the minimum amounts when no amount within the range is a better estimate than any other amount. Potential insurance reimbursements are not anticipated in our accruals for environmental liabilities. While the final resolution of litigation and environmental contingencies could result in amounts different than current accruals, and therefore have an impact on our consolidated financial results in a future reporting period, we believe the ultimate outcome will not have a significant effect on our consolidated results of operations, financial position or cash flows.

Actuarially Determined Liabilities

The measurement of our pension and postretirement benefit obligations are dependent on a variety of assumptions determined by management and used by our actuaries. These assumptions affect the amount and timing of future contributions and expenses.

The assumptions used in developing the required estimates include discount rate, projected salary and health care cost increases and expected return or earnings on assets. The discount rate assumption is based on the investment yields available at year-end on corporate long-term bonds rated AA. Projected salary and health care cost increases are based on our long-term actual experience, the near-term outlook and assumed inflation. The expected return on plan assets reflects asset allocations, investment strategies and the views of investment managers over a long-term perspective. The effects of actual results differing from our assumptions are accumulated and amortized over future periods and, therefore, generally affect our recognized expense in future periods.

In determining our U.S. pension and postretirement obligations for 2004, our discount rates decreased from 6.25 percent to 5.75 percent, while our expected return on plan assets remained at 9.00 percent and our projected salary increase was unchanged at 4.3 percent.

The effect on 2005 expense of a decrease in discount rate or expected return on assets assumption as of December 31, 2004 is shown below assuming no changes in benefit levels and no amortization of gains or losses for our major plans:

(dollars in millions)	Effect on U.S. Pension Plan
Assumption	Assumption Change	Decline in Funded Status	Higher 2005 Expense
Discount rate	-0.25 pts	$29.8	$4.1
Expected return on assets	-0.25 pts	N/A	$1.5

(dollars in millions)	Effect on U.S. Postretirement Health Care Benefits Plan
Assumption	Assumption Change	Decline in Funded Status	Higher 2005 Expense
Discount rate	-0.25 pts	$5.2	$0.6

We are self-insured in North America for most workers compensation, general liability and automotive liability losses, subject to per occurrence and aggregate annual liability limitations. We are insured for losses in excess of these limitations. We have recorded both a liability and an offsetting receivable for amounts in excess of these limitations. We are also self-insured for health care claims for eligible participating employees, subject to certain deductibles and limitations. We determine our liabilities for claims incurred but not reported on an actuarial basis. A change in these assumptions would cause reported results to differ.

Income Taxes

Judgment is required to determine the annual effective income tax rate, deferred tax assets and liabilities and any valuation allowances recorded against net deferred tax assets. Our effective income tax rate is based on annual income, statutory tax rates and tax planning opportunities available in the various jurisdictions in which we operate. We establish liabilities or reserves when we believe that certain positions are likely to be challenged by authorities and we may not succeed, despite our belief that our tax return positions are fully supportable. We adjust these reserves in light of changing facts and circumstances, such as the progress of a tax audit. Our annual effective income tax rate includes the impact of reserve provisions and changes to reserves that we consider appropriate. During interim periods, this annual rate is then applied to our quarterly operating results. In the event that there is a significant one-time item recognized in our interim operating results, the tax attributable to that item would be separately calculated and recorded in the same period as the one-time item.

Tax regulations require items to be included in our tax returns at different times than the items are reflected in our financial statements. As a result, the effective income tax rate reflected in our financial statements differs from that reported in our tax returns. Some of these differences are permanent, such as expenses that are not deductible on our tax return, and some are temporary differences, such as depreciation expense. Temporary differences create deferred tax assets and liabilities. Deferred tax assets generally represent items that can be used as a tax deduction or credit in our tax return in future years for which we have already recorded the tax benefit in our income statement. We establish valuation allowances for our deferred tax assets when the amount of expected future taxable income is not likely to support the utilization of the deduction or credit. Deferred tax liabilities generally represent items for which we have already taken a deduction in our tax return, but have not yet recognized that tax benefit in our financial statements. Undistributed earnings of foreign subsidiaries are considered to have been reinvested indefinitely or available for distribution with foreign tax credits available to offset the amount of applicable income tax and foreign withholding taxes that might be payable on earnings. It is impractical to determine the amount of incremental taxes that might arise if all undistributed earnings were distributed.

A number of years may elapse before a particular tax matter, for which we have established a reserve, is audited and finally resolved. The number of tax years with open tax audits varies depending on the tax jurisdiction. In the United States during 2004, the Internal Revenue Service completed their examination of our tax returns for 1999 through 2001. While it is often difficult to predict the final outcome or the timing of resolution of any tax matter, we believe that our reserves reflect the probable outcome of known tax contingencies. Unfavorable settlement of any particular issue would require the use of cash. Favorable resolution could result in reduced income tax expense reported in the financial statements in the future. Our tax reserves are generally presented in the balance sheet within other non-current liabilities.

Long-Lived and Intangible Assets

We periodically review our long-lived and intangible assets for impairment and assess whether significant events or changes in business circumstances indicate that the carrying value of the assets may not be recoverable. This could occur when the carrying amount of an asset exceeds the anticipated future undiscounted cash flows expected to result from the use of the asset and its eventual disposition. The amount of the impairment loss to be recorded, if any, is calculated as the excess of the asset's carrying value over its estimated fair value. We also periodically reassess the estimated remaining useful lives of our long-lived assets. Changes to estimated useful lives would impact the amount of depreciation and amortization expense recorded in earnings. We have experienced no significant changes in the carrying value of our long-lived assets.

Statement of Financial Accounting Standards (SFAS) No. 142, Goodwill and Other Intangible Assets, requires that goodwill and certain intangible assets be assessed for impairment using fair value measurement techniques. Specifically, goodwill impairment is determined using a two-step process. Both the first step of determining the fair value of a reporting unit and the second step of determining the fair value of individual assets and liabilities of a reporting unit (including unrecognized intangible assets) are judgmental in nature and often involve the use of significant estimates and assumptions. Estimates of fair value are primarily determined using discounted cash flows, market comparisons and recent transactions. These valuation methodologies use significant estimates and assumptions, which include projected future cash flows (including timing), discount rate reflecting the risk inherent in future cash flows, perpetual growth rate, and determination of appropriate market comparables. Of the total goodwill included in our consolidated balance sheet, 18 percent is recorded in our United States Cleaning & Sanitizing reportable segment, 5 percent in our United States Other Services segment and 77 percent in our International segment.

In 2002, SFAS No. 142 became effective and as a result, we ceased to amortize goodwill in 2002. We were required to perform an initial impairment review of our goodwill at the beginning of 2002 under the guidelines of SFAS No. 142. The result of testing goodwill for impairment was a non-cash charge of $4.0 million after-tax ($0.02 per share). All of the impairment charge was related to our Africa/Export operations due to the difficult economic environment in that region. We have continued to review our goodwill for impairment on an annual basis for all reporting units, including businesses reporting losses such as GCS Service, under the guidelines of SFAS No. 142. If circumstances change significantly within a reporting unit, the company would test for impairment prior to the annual test.

Functional Currencies

In preparing the consolidated financial statements, we are required to translate the financial statements of our foreign subsidiaries from the currency in which they keep their accounting records, generally the local currency, into United States dollars. Assets and liabilities of these operations are translated at the exchange rates in effect at each fiscal year end. The translation adjustments related to assets and liabilities that arise from the use of differing exchange rates from period to period are included in accumulated other comprehensive income (loss) in shareholders' equity. Income statement accounts are translated at the average rates of exchange prevailing during the year. We evaluate our International operations based on fixed rates of exchange; however, the different exchange rates from period to period impact the amount of reported income from our consolidated operations.