A. 
The provisions of this chapter shall not apply to any land use, improvement or development for which a valid, existing final approval shall have been obtained prior to the effective date of this chapter from the authority or authorities of the Town of Ossining having jurisdiction over such land use. As used in this section, the term "final approval" shall mean:
(1) 
In the case of the subdivision of land: approval of a final plat as the term is defined in § 276 of the Town Law.
(2) 
In the case of a site plan, special permit or conditional use permit not involving the subdivision of land: approval by the appropriate board.
(3) 
In those cases not covered by Subsection A or B immediately above:
(a) 
The issuance of a building permit for the commencement of the use, improvement or development for which such permit was issued.
(b) 
For those uses, improvements and developments for which the Town of Ossining does not require such permits: the actual commencement of the use, improvement or development of the land.
B. 
Any land use, improvement, subdivision, site plan, special permit, conditional use permit or other action under review by the Building Inspector, Planning Board or other board that has not received its final approval as of the date of the adoption of this chapter by the Town Board, or where such final approval has expired, shall be subject to the conditions and requirements of this chapter.
In order to carry out the purposes and provisions hereof, and in addition to the powers specified elsewhere in this chapter, the following general provisions shall apply:
A. 
Indemnification. The applicant and property owner shall indemnity and hold the town, its officers, employees and agents harmless against any damage or injury which may arise out of the application process.
B. 
Notice provisions. The deed, contract of sale and final plat of any land subdivided subsequent to the enactment hereof shall describe all steep slope areas on said land which are regulated by this chapter and shall include a note on the deed, contract and final plat, respectively, that any construction within these areas requires a permit.
C. 
Conflicts. Wherever this chapter is inconsistent with any other law of the Town of Ossining, whichever law imposes the more stringent restriction shall prevail.
D. 
Severability. The provisions and sections of this chapter shall be deemed to be severable, and the invalidity of any portion of this chapter by a court of competent jurisdiction shall not affect the validity of the remainder of this chapter.
E. 
When effective. This chapter shall become effective immediately upon publishing and posting as required by law.