NOTE A  ORGANIZATIO N AND DESCRIPTION OF THE BUSINESS AND FINANCIAL STATEMENT PRESENTATION  ArcBest Corporation  (the Company) is the parent holding company of freight transportation and integrated logistics businesses providing innovative solutions. The Companys operations are conducted through its three reportable operating segments: Asset-Based, which consists of ABF Freight System, Inc. and certain other subsidiaries; ArcBest, the Companys asset-light logistics operation; and FleetNet  . References to the Company in this Quarterly Report on Form 10-Q are primarily to the Company and its subsidiaries on a consolidated basis.  The Asset-Based segment represented approximately 70% of the Companys total revenues before other revenues and intercompany eliminations for the three months ended March 31, 2020. As of March 2020, approximately 82% of the Asset-Based segments employees were covered under a collective bargaining agreement, the ABF National Master Freight Agreement (the 2018 ABF NMFA), with the International Brotherhood of Teamsters (the IBT), which will remain in effect through June 30, 2023.  Financial Statement Presentation  The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States and applicable rules and regulations of the Securities and Exchange Commission (the SEC) pertaining to interim financial information. Accordingly, these interim financial statements do not include all information or footnote disclosures required by accounting principles generally accepted in the United States for complete financial statements and, therefore, should be read in conjunction with the audited financial statements and accompanying notes included in the Companys 2019 Annual Report on Form 10-K and other current filings with the SEC. In the opinion of management, all adjustments (which are of a normal and recurring nature) considered necessary for a fair presentation have been included.  The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual amounts may differ from those estimates. The Company considered the impact of the novel coronavirus (COVID-19) pandemic on the estimates and assumptions used and determined that there were no material adverse impacts on the Companys results of operations or financial position as of and for the three months ended March 31, 2020. Given the uncertainties regarding the economic environment and the impact of the COVID-19 pandemic on our business, it is possible that these estimates and assumptions may materially change in future periods.  Accounting Policies  The Companys accounting policies are described in Note B to the consolidated financial statements included in Part II, Item 8 of the Companys 2019 Annual Report on Form 10-K. The following policies have been updated during the three months ended March 31, 2020 for the adoption of accounting standard updates disclosed within this Note.  Allowances: On January 1, 2020, the Company adopted ASC Topic 326, Financial Instruments  Credit Losses , (ASC Topic 326), which replaces the incurred loss methodology model with an expected loss methodology that is referred to as the current expected credit loss (CECL) methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including trade receivables and other receivables.  The Company maintains allowances for credit losses (formerly known as the allowance for doubtful accounts) and revenue adjustments on its trade receivables. The Company estimates the allowance for credit losses based on historical write-offs, factors surrounding the credit risk of specific customers, and forecasts of future economic conditions. In order to gather information regarding these trends and factors, the Company performs ongoing credit evaluations of customers, an analysis of accounts receivable aging by business segment, and an analysis of future economic conditions at period end. The allowance for revenue adjustments is an estimate based on historical revenue adjustments and current information regarding trends and business changes. Actual write-offs or adjustments could differ from the allowance estimates due to a number of factors, including future changes in the forecasted economic environment or new factors and risks surrounding a particular customer. Accounts receivable are written off when the accounts are turned over to a collection agency or when the accounts are determined to be uncollectible. Actual write-offs and adjustments are charged against the allowances for doubtful accounts and revenue adjustments. The allowance for credit losses on the Companys trade accounts receivable totaled $2.6 million atMarch 31, 2020 and $1.8 million atDecember 31, 2019.There werenomaterial write-offs charged against or increases to the allowance for credit losses during thethree months ended March 31,2020.  Adopted Accounting Pronouncements  As previously discussed within Accounting Policies in this Note, effective January 1, 2020, the Company adopted ASC Topic 326, which replaces the incurred loss methodology model with an expected loss methodology referred to as the CECL methodology for the Companys trade receivables and other receivables. The Company adopted ASC Topic 326 with the modified retrospective approach. Under this approach, results for reporting periods after January 1, 2020 are presented under ASC Topic 326 while prior period amounts continue to be reported in accordance with previously applicable accounting guidance. The Company recorded a decrease to retained earnings of $0.2 million as of January 1, 2020 for the cumulative effect of adopting ASC Topic 326.  On January 1, 2020 the Company adopted ASC Subtopic 350-40, Intangibles  Goodwill and Other  Internal-Use Software: Customers Accounting for Fees Paid in a Cloud Computing Arrangement , (ASC Subtopic 350-40) which was amended by the Financial Accounting Standards Board in August 2018. The amendments to ASC Subtopic 350-40 clarify the accounting treatment for implementation costs incurred by the customer in a cloud computing software arrangement. The amendments allow implementation costs of cloud computing arrangements to be capitalized using the same method prescribed by ASC Subtopic 350-40, Internal-Use Software . The amendments to ASC Subtopic 350-40 were adopted on a prospective basis and did not have an impact on the Companys consolidated financial statements.  On January 1, 2020 the Company adopted ASC Topic 820, Fair Value Measurement , which was amended to modify the disclosure requirements of fair value measurements, primarily impacting the disclosures for Level 3 fair value measurements. The amendment did not have an impact on the Companys financial statement disclosures as of March 31, 2020.  The amendments to ASC Topic 848, Reference Rate Reform , (ASC Topic 848) are effective as of March 12, 2020 through December 31, 2022 and provide optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The Company did not elect the optional expedients or apply the exceptions allowed by ASC Topic 848 during the three months ended March 31, 2020 and does not expect that the amendments, if elected, will have a significant impact on the Companys consolidated financial statements. The Companys revolving credit facility (Credit Facility) under its Third Amended and Restated Credit Agreement (Credit Agreement), accounts receivable securitization program, and interest rate swap agreements utilize interest rates based on LIBOR, which is expected to be phased out by the end of 2021. The Companys Credit Facility and current interest rate swap agreement, which was amended on May 4, 2020 (see Note F), mature on October 1, 2024. The Credit Agreement provides for the use of an alternate rate of interest in accordance with the provisions of the agreement and the interest rate on the swap agreement will change to the rate in the Credit Agreement. Any changes to the terms of our borrowing arrangements which would allow for the use of an alternative to LIBOR in calculating the interest rate under such arrangements are anticipated to be effective in 2022 upon the Companys agreement with the lenders as to the replacement reference rate.  Accounting Pronouncements Not Yet Adopted  ASC Topic 740, Income Taxes , was amended to simplify the accounting for income taxes to improve consistency of accounting methods and remove certain exceptions. The amendment is effective for the Company beginning January 1, 2021. The Company is currently assessing the impact this amendment will have on the consolidated financial statements and disclosures.  Management believes there is no other new accounting guidance issued but not yet effective that is relevant to the Companys current financial statements.