The Oregon Planned Community Act (ORS Chapter 94) was adopted in the early 1980s. The Act applies to any subdivision where the owners have collective obligations. Collective obligations include maintaining common property or paying assessments that are used for association operations. A community may be subject to ORS Chapter 94 even if created prior to the adoption of the Act and even if the governing documents make no mention of the statute.
The applicability of the Act depends on the year the community was created, the number of lots, and the total amount of annual assessments. The number of lots and the total amount of annual assessments determine the "class" of the planned community. Class 1 planned communities contain at least 13 lots with at least $10,000 in total annual assessments. Communities with 5-12 lots and at least $1,000 in total annual assessments are Class 2 planned communities. All other subdivisions with collective obligations are considered Class 3 planned communities.
For Class 1 and Class 2 planned communities created prior to 2002, certain provisions of the Act apply to the extend the statute is consistent with the governing documents. Here is a quick way to determine which portions of ORS Chapter 94 apply to your community (if created before 2002): https://calaw.attorney/ors94applicability