By clearly establishing sustainability-related construction standards, e.g., specified air quality, sustainable materials, landfill diversion, locally sourced material, use of low-VOC materials, etc., the tenant can regulate how its space is finished. The tenant’s agreement with the contractor should include a warranty that the premises as designed will be constructed to comply with sustainability standards, relevant green building laws, and that construction will be undertaken in accordance with the sustainable methodologies specified by the tenant. Be aware that the landlord may object to these requirements if they are not part of standard protocols.