1 EXHIBIT 10.1 Execution Copy Amendment No. 4 AMENDMENT NO. 4 to Credit Agreement ("Amendment No. 4") dated as of March 31, 1998, between Lamar Advertising Company (the "Borrower"), the Subsidiary Guarantors party hereto and The Chase Manhattan Bank, as Administrative Agent (in such capacity, the "Administrative Agent"). The Borrower, the Subsidiary Guarantors, the lenders party thereto (the "Lenders") and the Administrative Agent are parties to a Credit Agreement dated as of December 18, 1996 (as modified and supplemented and in effect on the date hereof, the "Credit Agreement"). The Borrower, the Subsidiary Guarantors and the Administrative Agent with the consent of the Required Lenders (as defined in the Credit Agreement) wish to amend the Credit Agreement in certain respects and, accordingly, the parties hereto hereby agree as follows: Section 1. Definitions. Except as otherwise defined in this Amendment No. 4, terms defined in the Credit Agreement (as amended hereby) are used herein as defined therein. Section 2. Amendments to the Credit Agreement. Subject to the due execution and delivery by the Borrower, the Subsidiary Guarantors, the Required Lenders and the Administrative Agent of this Amendment No. 4, but effective as of the date hereof, the Credit Agreement shall be amended as follows: 2.01. References in the Credit Agreement (including references to the Credit Agreement as amended hereby) to "this Agreement" (and indirect references such as "hereunder", "hereby", "herein" and "hereof") shall be deemed to be references to the Credit Agreement as amended hereby. 2.02. The table in the definition of "Applicable Margin" in Section 1.01 of the Credit Agreement is amended to read as follows: "Range Applicable Margin (% p.a.) of Total Debt Ratio Base Rate Loans Eurodollar Loans ---------------- --------------- ---------------- Greater than or equal to 5.50 to 1 1.00% 2.25% Greater than or equal to 5.00 to 1 but less than 5.50 to 1 .75% 2.00% Greater than or equal to 4.50 to 1 but less than 5.00 to 1 .50% 1.75% Amendment No. 4 2 -2- Greater than or equal to 4.00 to 1 but less than 4.50 to 1 .25% 1.50% Greater than or equal to 3.50 to 1 but less than 4.00 to 1 .00% 1.25% Less than 3.50 to 1 .00% 1.00%" 2.03. Section 7.09(a) of the Credit Agreement is hereby amended to read as follows: "(a) Total Debt Ratio. The Borrower will not permit the Total Debt Ratio at any time during any period below to exceed the ratio set opposite such period below: Period Ratio ------ ----- From the Effective Date through March 30, 1998 5.50 to 1 From March 31, 1998 through June 29, 1998 6.00 to 1 From June 30, 1998 through December 30, 1998 5.25 to 1 From December 31, 1998 through December 30, 1999 5.00 to 1 From December 31, 1999 through December 30, 2000 4.50 to 1 From December 31, 2000 and at all times thereafter 4.00 to 1" 2.04. Section 7.09(c) of the Credit Agreement is hereby amended by replacing "to exceed" with "to be less than" therein, and by changing the references therein of "March 30, 1998" and "March 31, 1998" to "June 29, 1998" and "June 30, 1998", respectively.. Section 3. Representations and Warranties. The Borrower and each Subsidiary Guarantor represents and warrants to the Lenders that the representations and warranties set forth in Article IV of the Amendment No. 4 3 -3- Credit Agreement are true and complete on the date hereof as if made on and as of the date hereof and as if each reference in said Article IV to "this Agreement" includes reference to this Amendment No. 4. Section 4. Miscellaneous. Except as herein provided, the Credit Agreement shall remain unchanged and in full force and effect. This Amendment No. 4 may be executed in any number of counterparts, all of which taken together shall constitute one and the same amendatory instrument and any of the parties hereto may execute this Amendment No. 4 by signing any such counterpart. This Amendment No. 4 shall be governed by, and construed in accordance with, the law of the State of New York. IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 4 to be duly executed and delivered as of the day and year first above written. LAMAR ADVERTISING COMPANY By: /s/ Keith Istre ---------------------------------------- Title: CFO SUBSIDIARY GUARANTORS INTERSTATE LOGOS, INC. THE LAMAR CORPORATION LAMAR ADVERTISING OF MOBILE, INC. LAMAR ADVERTISING OF COLORADO SPRINGS, INC. LAMAR ADVERTISING OF SOUTH MISSISSIPPI, INC. LAMAR ADVERTISING OF JACKSON, INC. LAMAR TEXAS GENERAL PARTNER, INC. LAMAR ADVERTISING OF SOUTH GEORGIA, INC. LAMAR TENNESSEE LIMITED PARTNER, INC. TLC PROPERTIES, INC. TLC PROPERTIES II, INC. LAMAR PENSACOLA TRANSIT, INC. LAMAR ADVERTISING OF YOUNGSTOWN, INC. NEBRASKA LOGOS, INC. OKLAHOMA LOGO SIGNS, INC. MISSOURI LOGOS, INC. OHIO LOGOS, INC. UTAH LOGOS, INC. TEXAS LOGOS, INC. MISSISSIPPI LOGOS, INC. GEORGIA LOGOS, INC. Amendment No. 4 4 -4- SOUTH CAROLINA LOGOS, INC. VIRGINIA LOGOS, INC. MINNESOTA LOGOS, INC. MICHIGAN LOGOS, INC. NEW JERSEY LOGOS, INC. FLORIDA LOGOS, INC. KENTUCKY LOGOS, INC. NEVADA LOGOS, INC. TENNESSEE LOGOS, INC. KANSAS LOGOS, INC. LAMAR ADVERTISING OF HUNTINGTON - BRIDGEPORT, INC. LAMAR ADVERTISING OF PENN, INC. LAMAR ADVERTISING OF MISSOURI, INC. LAMAR ADVERTISING OF MICHIGAN, INC. LAMAR ELECTRICAL, INC. LAMAR ADVERTISING OF SOUTH DAKOTA, INC. By: /s/ Keith Istre ---------------------------------------- Title: CFO LAMAR TEXAS LIMITED PARTNERSHIP By: Lamar Texas General Partner, Inc., its general partner By: /s/ Keith Istre ---------------------------------------- Title: CFO LAMAR TENNESSEE LIMITED PARTNERSHIP LAMAR TENNESSEE LIMITED PARTNERSHIP II By: The Lamar Corporation, their general partner By: /s/ Keith Istre ---------------------------------------- Title: CFO Amendment No. 4 5 -5- LAMAR AIR, L.L.C. By: The Lamar Corporation, its manager By: /s/ Keith Istre ---------------------------------------- Title: CFO MINNESOTA LOGOS, A PARTNERSHIP By: Minnesota Logos, Inc., its general partner By: /s/ Keith Istre ---------------------------------------- Title: CFO TLC PROPERTIES, L.L.C. By: TLC Properties, Inc., its manager By: /s/ Keith Istre ---------------------------------------- Title: CFO LENDERS THE CHASE MANHATTAN BANK BANK ONE, LOUISIANA, NATIONAL ASSOCIATION By: By: ---------------------- ---------------------- Title: Title: CIBC INC. FLEET BANK, N.A. By: By: ---------------------- ---------------------- Title: Title: Amendment No. 4 6 -6- ABN AMRO BANK N.V. BANQUE PARIBAS Houston Agency By: By: ---------------------- ---------------------- Title: Title: By: By: ---------------------- ---------------------- Title: Title: CORESTATES BANK, N.A. BANK OF MONTREAL, CHICAGO BRANCH By: By: ---------------------- ---------------------- Title: Title: THE LONG-TERM CREDIT BANK HIBERNIA NATIONAL BANK OF JAPAN, LIMITED, NEW YORK BRANCH By: By: ---------------------- ---------------------- Title: Title: MERITA BANK LTD - THE BANK OF NOVA SCOTIA NEW YORK BRANCH By: By: ---------------------- ---------------------- Title: Title: By: ---------------------- Title: Amendment No. 4 7 -7- UNION BANK OF CALIFORNIA BANK OF TOKYO-MITSUBISHI TRUST COMPANY By: By: ---------------------- ---------------------- Title: Title: FIRST UNION NATIONAL BANK STATE STREET BANK AND OF NORTH CAROLINA TRUST COMPANY By: By: ---------------------- ---------------------- Title: Title: CRESTAR BANK By: ---------------------- Title: ADMINISTRATIVE AGENT THE CHASE MANHATTAN BANK, as Administrative Agent By: ---------------------- Title: Amendment No. 4