7 Pa. Code § 137b.63
(a) Landowner’s responsibility to provide advance notice of changes. An owner of enrolled land shall provide the county assessor of the county in which the land is preferentially assessed at least 30 days’ advance written notice of any of the following:
(b) Contents of notice. The notice described in subsection (a) shall include the following information:
(c) Landowner’s responsibility to provide notice of termination of preferential assessment. An owner of enrolled land shall provide the county assessor of the county in which the land is preferentially assessed with advance written notice of termination of preferential assessment, under § 137b.52(d) (relating to duration of preferential assessment) or § 137b.84 (relating to split-off that does not comply with section 6(a.1)(1)(i) of the act). The notice shall include the following information:
Notice by Landowner
Where a regulation mandates that a landowner provide notice of split-off from enrolled lands, the failure to do so relieves the chief assessor from its obligation to give notice within 5 days of deed recordation, and leaves the assessor free to assess roll-back taxes. The landowner’s notice requirement must be strictly construed to prevent the unreasonable result of avoiding roll-back taxes simply by not giving the required notice. Moyer v. Berks County Board of Assessment Appeals, 803 A.2d 833 (Pa. Cmwlth. 2002), appeal denied 812 A.2d 1232 (Pa. 2002).
This section cited in 7 Pa. Code § 137b.82 (relating to split-off tract).