As used in this article, the following terms shall have the meanings indicated:
Those uses, lots, buildings, structures, parking spaces, loading spaces, signs, landscaping and other activities that are subject to the provisions of this chapter, which were not lawfully created after this chapter was adopted or after amendments to this chapter which are applicable to those situations were adopted, are in violation of this chapter and may be called "noncomplying situations."
In accordance with MGL c. 40A, § 7, a structure which has not been in compliance with this chapter, or with the conditions set forth in any special permit or variance affecting the structure, for a period of 10 years or more from the commencement of the violation may not be the subject of an enforcement action by the City to compel the removal, alteration, or relocation of such structure. Structures which qualify under MGL c. 40A, § 7, are considered to be nonconforming structures and are entitled to treatment as such as provided in this section.
Those uses, lots, buildings, structures, parking spaces, loading spaces, signs, landscaping and other activities that are now subject to the provisions of this chapter which were lawful before this chapter was adopted, or before amendments to this chapter which are applicable to the situation were adopted, and such situations do not now conform to the provisions of this chapter.