Waste Industries USA to Report First Quarter on May 1

Date: April 24, 2007

Source: Waste Industries USA, Inc.

Waste Industries USA, Inc. Announces Reporting Date for First Quarter 2007 Earnings Release and Conference Call

Waste Industries USA, Inc. (Nasdaq: WWIN) announced that it will report its first quarter 2007 financial results after the close of the stock market on Tuesday, May 1, 2007. The Company will host a conference call to discuss the results on Wednesday, May 2, 2007 at 2:00 p.m. Eastern time.

Waste Industries invites you to listen to the conference call by dialing (866) 550-6338 and ask for the "Waste Industries Conference Call" with a Call ID of 6184173. Please call approximately 5 - 10 minutes prior to the scheduled time. The call will also be broadcast live over the Internet at www.wasteindustries.com under Investor Relations. A replay of the call will be available through May 16, 2007, and may be accessed by calling (888) 203-1112 and using Call ID 6184173.

Waste Industries USA, Inc. is a vertically integrated regional solid waste services company that provides collection, transfer, disposal and recycling services to commercial, industrial and residential customer locations in the states of North Carolina, South Carolina, Virginia, Tennessee, Mississippi, and Georgia.

For more information, visit: www.waste-ind.com or www.wasteindustries.com.

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