- @. Workmen's Compensation Insurance (Defense Base Act). The Subcontractor, before commencing performance under this Subcontract, shall provide and thereafter maintain such Workmen's Compensation Insurance or security as is required by the Defense Base Act, as amended (42 U.S.C. 1651 et seq.). The Subcontractor further agrees to insert in all lower-tier subcontracts hereunder to which the Defense Base Act is applicable, an Article similar to this Article, including this sentence, imposing on all such subcontractors a like requirement to comply with the Defense Base Act. ARTICLE 27 — NOTICE OF LABOR DISPUTES Whenever an actual or potential labor dispute is delaying or threatens to dela the performance of the work, the Subcontractor shall immediately notify the Contractor in writing. Such notice shall include all relevant information concerning the dispute and its background. ARTICLE 28 ~ LABOR UNION AGREEMENTS The Subcontractor shall comply with all.the terms and conditions, except those contrary to any applicable state or feral law, contained in any agreement between the Contractor and an interpational or local labor union which is applicable to work included in this Subcongrack- The Contractor's labor agree- ments with international and local labo caysietions are not applicable to construction performed outside the territorialO%imits of any of the Fifty states of the United States. A breach of this Articie by the Subcontractor shall be sufficien reason for the Contractor to terminate thjgSubcontract for default or take other action, as provided under the Arti herein entitled "Default." The Sub- contractor shall insert this Article in”each of its subcontracts. ARTICLE 29 — COVENANT AGAINST CONTINGENT FEES The Subcontractor warrants that no person or selling agency has been employed or retained to solicit or secure this Subcontract upon an agreement or under— standing for a commission, percentage, brokerage, or continyvent fee, except- ing bona fide employees or bona fide established commercial or selling agencies maintained by the Subcontractor for the purpose of securing business. For breach or violation of this warranty, the Contractor shall have the right to annul this Subcontract without liability or, in its discretion, to deduct from the Subcontract price or consideration, or otherwise recover, the full amount of such commission, percentage, brokerage, or contingent fce. ARTICLE 30 — OFFICIALS NOT TO BENEFIT No member of or delegate to Congress, or resident commissioner, shall be admitted to any share or pare of this Subcontract, or to any benefit that may arise therefrom; but this provision shall not be construed to extend to this Subcontract if made with a corporation for its general benefit. ARTICLE 31 ~ BUY AMERICAN ACT a. In acquiring end products, thofuy American Act (41 U.S. Code 10a-d) provides that the Covernment giye/preference to domestic source end products. For the purpose of this Artigle: ~ 26 90086171