Yes.
Each HOA community has a set of documents and policies that govern the HOA. By purchasing a home in the community, you are legally bound to abide by these documents and the policies they set forth. Part of these documents outlines enforcement policies and guidelines that each lot owner must follow.
The most common policies that we normally see broken are:
1) trailers must be parked behind the front corner of the home AND must be screened by a fence so it is not visible from the street, and
2) unkempt yards (this could be overgrown grass, excessive weeds, or dead lawns).
The overall goal with enforcement is to keep the appearance of the community well maintained which helps maintain high property values.