Professional Answer: As a leading provider of power line equipment, we understand the distinction. The primary difference lies in the scope and scale of their work. A transmission linesperson focuses on the large-scale, high-voltage lines that transport electricity from power plants to substations, often working on tall steel towers. In contrast, a distribution linesperson works on the lower-voltage lines that deliver power from substations directly to customers, typically using wooden or concrete poles. The tools and safety procedures for each role are tailored to their specific working environment and voltage levels.