This excerpt taken from the FNET 8-K filed Sep 4, 2008.
NOTE: Tenant is responsible for determining whether or not the Applicable Requirements, and especially the zoning, are appropriate for Tenant's intended use, and acknowledges that past uses of the Premises may no longer be allowed. If the Premises do not comply with said warranty, Landlord shall, except as otherwise provided, promptly after receipt of written notice from Tenant setting forth with specificity the nature and extent of such non-compliance, rectify the same at Landlord's expense. If Tenant does not give Landlord written notice of a non-compliance with this warranty within 6 months following the Start Date, correction of that non-compliance shall be the obligation of Tenant at Tenant's sole cost and expense. If the Applicable Requirements are hereafter changed so as to require during the term of this Lease the construction of an addition to or an alteration of the Unit, Premises and/or Building, the remediation of any Hazardous Substance, or the reinforcement or other physical modification of the Unit, Premises and/or Building