Screen print of the ACS Support and Collection SC 22 TAS Liaison lookup took.Line 1: These liaisons are for internal use only; Do not refer a taxpayer to the liaison. Refer taxpayers to the appropriate toll free telephone number.Line 2: Business Operating Division (BOD) and then a combo box.Line 3: State and then a combo box.Line 4: Does the case have TAS involvement? and then a combo box.Line 5: a submit button.