FAR 52.236-9—Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements.
Plain-English Summary
FAR 52.236-9, Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements, is a construction-site protection clause that tells the contractor how to avoid unnecessary damage to property during performance. It covers preservation of existing structures, equipment, and vegetation on or near the work site; limits tree removal to situations specifically authorized by the Contracting Officer; requires careful handling of broken limbs or branches, including clean trimming and application of tree-pruning compound when directed; and requires protection of existing improvements and utilities both at or near the site and on adjacent third-party property whose location is known or should be known. The clause also establishes a repair obligation for damage caused by contract noncompliance or lack of reasonable care, including damage to third-party property, and gives the Contracting Officer the right to arrange repairs and charge the contractor if the contractor does not act promptly. In practice, this clause allocates responsibility for avoiding collateral damage, supports site preservation and safety, and gives the Government a clear remedy when contractor operations harm existing property. It is especially important on renovation, utility, civil works, and site-development projects where work occurs around occupied facilities, landscaping, buried utilities, or neighboring property.
Key Rules
Preserve existing site features
The contractor must protect structures, equipment, and vegetation on or adjacent to the work site that are not to be removed and that do not unreasonably interfere with the work. The default rule is preservation, not removal or disturbance.
Tree removal needs authorization
Trees may be removed only when specifically authorized. The contractor must also avoid damaging vegetation that is intended to remain in place, including trees, shrubs, and grass.
Repair broken tree limbs
If limbs or branches are broken during performance, whether by equipment or workers, the contractor must trim them with a clean cut and apply tree-pruning compound as directed by the Contracting Officer.
Protect utilities and improvements
The contractor must protect all existing improvements and utilities at or near the work site and on adjacent third-party property when their locations are known or should be known. This includes both visible and reasonably discoverable facilities.
Repair damage caused by performance
Any damage resulting from failure to follow the contract or failure to exercise reasonable care must be repaired by the contractor, including damage to third-party property. The duty applies even when the damaged property is not owned by the Government.
Government may recover repair costs
If the contractor fails or refuses to repair damage promptly, the Contracting Officer may arrange for the work to be done and charge the cost to the contractor. This gives the Government a direct enforcement remedy.
Responsibilities
Contractor
Preserve and protect existing structures, equipment, vegetation, improvements, and utilities; remove trees only when specifically authorized; avoid damaging vegetation that remains; repair broken limbs or branches as directed; protect known or reasonably knowable third-party property; and promptly repair any damage caused by contract noncompliance or lack of reasonable care.
Contracting Officer
Identify when tree-pruning compound or other corrective action is required; direct the contractor as needed; determine whether damage has been promptly repaired; and, if the contractor does not act, arrange for repairs and charge the cost to the contractor.
Agency/Owner of Adjacent Property
No direct contractual duties under the clause, but may be affected by the contractor’s obligation to protect and repair third-party property and utilities located on adjacent property.
Practical Implications
Contractors should survey the site early and identify trees, landscaping, utilities, and nearby improvements before work starts, because the clause covers property the contractor knows or should know about.
This clause creates a broad duty of reasonable care, so damage caused by careless equipment operation, poor staging, or inadequate protection can become a contractor repair cost even if the damage was not intentional.
Tree and vegetation issues are common dispute points; contractors should get written authorization before removing trees and should document any direction from the Contracting Officer about pruning or treatment.
For utility-heavy or urban projects, the phrase 'known or should be known' is important: contractors cannot rely only on what is obvious at the surface if reasonable preconstruction investigation would reveal more.
Contracting Officers should document damage, direct timely corrective action, and be prepared to use the self-help remedy if the contractor delays or refuses repairs.
Official Regulatory Text
As prescribed in 36.509 , insert the following clause: Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements (Apr 1984) (a) The Contractor shall preserve and protect all structures, equipment, and vegetation (such as trees, shrubs, and grass) on or adjacent to the work site, which are not to be removed and which do not unreasonably interfere with the work required under this contract. The Contractor shall only remove trees when specifically authorized to do so, and shall avoid damaging vegetation that will remain in place. If any limbs or branches of trees are broken during contract performance, or by the careless operation of equipment, or by workmen, the Contractor shall trim those limbs or branches with a clean cut and paint the cut with a tree-pruning compound as directed by the Contracting Officer. (b) The Contractor shall protect from damage all existing improvements and utilities (1)at or near the work site, and (2)on adjacent property of a third party, the locations of which are made known to or should be known by the Contractor. The Contractor shall repair any damage to those facilities, including those that are the property of a third party, resulting from failure to comply with the requirements of this contract or failure to exercise reasonable care in performing the work. If the Contractor fails or refuses to repair the damage promptly, the Contracting Officer may have the necessary work performed and charge the cost to the Contractor. (End of clause)