What term is used to describe activities involving the construction and maintenance of interior piping systems?

The term that accurately describes activities involving the construction and maintenance of interior piping systems is "Interior jurisdictional piping." This term specifically pertains to the regulations and standards that govern various aspects of piping systems found within buildings. It encompasses not only the construction processes but also how these systems must be maintained to comply with safety codes and practices.

While options like "External operations" might imply activities related to piping systems located outside a structure, they do not pertain to the interior systems in question. "Exterior maintenance" clearly refers to upkeep done outside, and "Service pipeline adjustments" specify changes made to pipelines, but are more focused on modifications rather than the broader scope of construction and maintenance as it pertains to interior specifications. Thus, "Interior jurisdictional piping" is the most precise term to encompass the full range of activities related to interior piping systems.