Planning law is primarily concerned with regulating the use and development of land in order to ensure that it is done in a sustainable and orderly manner.

Tax laws are not typically considered to be a type of planning law, as they do not directly regulate the use and development of land.

Zoning laws are used to divide a municipality into different zones, each with its own permitted uses. This helps to ensure that different types of development are located in appropriate areas.

Building codes are used to ensure that buildings are safe and structurally sound. They typically include requirements for the design, construction, and maintenance of buildings.

Environmental impact assessments are used to identify and assess the potential environmental impacts of a proposed development, to develop mitigation measures to reduce the environmental impacts of a proposed development, and to obtain public input on a proposed development.

Easements are not typically considered to be a type of planning law instrument, as they do not directly regulate the use and development of land.

Subdivision regulations are used to regulate the division of land into smaller lots, to ensure that new subdivisions are compatible with existing development, and to provide for the installation of infrastructure in new subdivisions.

Building permits are used to authorize the construction of a new building or addition, to ensure that a new building or addition complies with building codes, and to protect the environment.

Contract disputes are not typically considered to be a type of planning law dispute, as they do not involve the interpretation or application of planning law.

Planning law disputes can be resolved through negotiation, mediation, arbitration, or litigation.

Tax reform is not typically considered to be a type of planning law reform, as it does not directly affect the regulation of the use and development of land.

Planning law today faces a number of challenges, including the need to balance competing interests, the need to keep up with changing technology, and the need to address climate change.

The future of planning law is likely to see it become more complex and technical, more focused on sustainability, and more collaborative.

Some of the key trends in planning law include the increasing use of smart growth principles, the growing emphasis on public participation, and the use of new technologies to improve planning processes.

Some of the challenges facing planning law in the 21st century include the need to address climate change, the need to accommodate a growing population, and the need to protect natural resources.