N.H. Rev. Stat. Ann. § 310-A:141
In this subdivision:
II. "Landscape architectural practice" means the performance of professional services in connection with the development of land areas where, and to the extent that the dominant purpose of such services is the preservation, enhancement or determination of proper land uses, natural land features, ground cover and planting, naturalistic and aesthetic values, the setting, approaches or environment for structures of other improvements, natural drainage and the consideration and determination of inherent problems of the land relating to erosion, wear and tear, blight or other hazards, to the extent that such services protect public health, safety and welfare. The practice of landscape architecture shall include the location, design, and arrangement of such tangible objects and features as are incidental and necessary to the purposes outlined in this paragraph, but shall not include the design, assessment, analysis, or evaluation of structures or facilities with separate and self-contained purposes, streets or highways, utilities, storm and sanitary sewer systems and appurtenant structures, and water and sewage treatment facilities such as are exclusive to the practice of professional engineers, natural scientists, or architects as defined in this chapter. Furthermore, this practice shall not include the making of land surveys or final land plats for official approval or recording, the official mapping of soils, or the analysis, testing, and reporting of soil and bedrock conditions, delineation of wetlands or determination of soil, surface, or groundwater related to hazardous waste contamination. The practice of landscape architecture shall include:
(a) Production of graphic and written material for use in the planning and design of land development programs including:
Source. 2006, 246:3, eff. July 1, 2006.