FGDC Cadastral Subcommittee - Projects and Workgroups

State and National Parcels Work Group
The State and National Parcel Data Working Group tasked with developing background information and providing assistance for states with the development of state parcel management programs including developing state business plans, conducting inventories, parcel conversion, and data access. Another aspect of the project is to provide information and coordination for a national parcel data system, which is recommended to be a federated system that is based on data assembled by the states from the local authoritative sources.

General parcel data information and reports can be found at
Parcel Studies. State Parcel Standards can be found at Related Standards

The State and National Parcel workgroup assists states with the development of standardized parcel data that can serve as a basis for nationwide parcel data.

The BLM, its cooperators, and other federal land management agencies have accomplished many cadastral related activities including standards development, coordination among federal agencies and commercial software firms, and implementation of complete national wide data sets. Subcommittee National Parcel Activities

State Parcel Data Management

State Management Programs Summary
The end product of this effort is to provide the user community with published parcel data that includes a representation of the parcel geometry and a subset of the local assessor attributes and comparable attributes for public lands.

An Assessment of Best Practices in Seven State Parcel Management Programs (2006)
Recognizing the importance of state administered programs for achieving complete parcel conversion, maintenance and publication nationwide, the Subcommittee initiated an evaluation of seven state parcel management efforts (Alabama, Arkansas, Florida, Montana, North Carolina, Tennessee and Wisconsin) for best practices that could be transferable to other states. The goal of this effort was to identify a set of best practices for implementing statewide parcel management programs.

Parcel Management Business Plan Template
This 2006 document provides a checklist and outline for a state business plan for aggregating and publishing authoritative parcel data.

Land Surveying Rules/Regulations by State

Parcel Stewardship and Management

Parcel Stewardship 2004 Presentation
This presentation summarizes some of the discussions on data stewardship arising form Subcommittee meetings

State Stewardship for parcel data
This paper describes the FGDC Cadastral Subcommittee perspective on the role and levels of stewardship for a state level organization in hosting and providing parcel data from the many parcel producers in the state. The goal is to describe a path for states to provide a trusted source for parcel data in their state.

Parcel Identifiers
The Parcel Identifier is defined as a label or tag for a parcel that is unique within a jurisdiction. The parcel identifier can be a numeric or alpha-numeric, but it must uniquely identify the parcel. This paper describes the characteristics and uses of parcel identifiers.

PLSS Stewardship and Management

PLSS Stewardship
The Public Land Survey System (PLSS) is a cadastral reference data theme that provides a basis for legal descriptions and mapping the rights and interests in land. The PLSS is maintained by two authorities (1) federal authority and (2) state authority. On federally managed lands the Bureau of Land Management (BLM) is the legally identified PLSS authority. On all lands without a federal right or interest the PLSS is under state authority or the state delegated authority. The Manual of Survey Instruction, 2009, defines survey procedures and provides definition to the PLSS nationwide.

PLSS Change Management
This document provides guidance on the policies and procedures for managing change and updates to Public Land Survey System Cadastral National Spatial Data Infrastructure (PLSS CadNSDI) data sets. This document is focused on state management of the PLSS but may be applicable to any agency maintaining PLSS or cadastral reference data sets.