Ticket sellers sell tickets and make reservations for sporting and entertainment venues, tourist attractions and some travel arrangements.

Wall and floor tilers lay ceramic, clay, slate, marble, glass and other types of tiles on external and internal walls and floors to provide protective and decorative finishes.

Timber and composite machinists set up, operate and maintain woodworking machines, which they use to cut, plane, shape and sand timber and composite materials to a required shape and size. Crafted timber and composite parts are then assembled to make a variety of furniture items and building components, such as tables, desks, chairs, beds, cabinets, boxes, window frames, veranda posts, balusters and flag poles.

Timber and wood production workers assist with the milling, processing and merchandising of timber and timber products such as sawn timber, timber mouldings, roof trusses, wall frames, laminated beams, plywood, hardboard, fibreboard, laminates and veneered products.

Timber harvesting operators undertake a range of tasks to do with the harvesting and maintenance of trees in natural forests and plantations, including logging, felling and sawing trees.

Tissue culture technicians use various techniques to asexually reproduce live tissue, under laboratory conditions, producing specimens that are genetically identical to, or different from, the parent tissue. The process of producing genetically identical specimens is commonly known as cloning. Tissue culture is used for a wide variety of commercially important agricultural and horticultural plants, in the propagation of rare and endangered plant species, and in the growth of tissues or cells used in health and medical research and treatments.

Tool and die setters set up and adjust machine tools and production machines, such as automatic lathes or multiple-operation machines.

Tour guides accompany visitors on local tours and guide tourists within a specific country, region, area, city or site. They provide special information on history, archaeology, monuments and works of art, the environment, culture, natural and built attractions, places of interest, and any general matters of interest to the visitor.

Tourist information officers provide travel, hospitality and accommodation information to tourists, promote tourism, and assess tourist opportunities for local communities.

Toxicologists study the harmful effects of chemical, physical and biological agents on living organisms by detecting and examining the symptoms, mechanisms and treatments of poisoning (especially the poisoning of people). They also determine safe or acceptable levels of exposure to particular agents.

Track riders exercise racehorses on behalf of horse trainers so that they may be fit for racing.

Trade measurement officers monitor the marketplace with respect to goods sold by measure to ensure the accuracy of claimed or advertised measurements. Typical transactions using measurement include fuel purchased for motor vehicles and goods purchased by weight in supermarkets.

Trade union officials work to maintain and improve the wages, conditions and employment opportunities of workers in particular occupations or industries. In some unions, trade union officials are elected from the union's membership, but in others they are appointed to paid positions. Officials with training in fields such as law, journalism, economics, accountancy and welfare may be appointed to specialist positions (such as legal officer or media officer). Research officers generally have tertiary qualifications that may be in a broad range of disciplines from arts to science.

Train and network controllers move trains across their area of control using computerised and mechanical control systems, and liaise with other employees across the network to ensure trains run to schedule and safety standards are maintained.

Train crew employees manage customer service on suburban and long-distance passenger trains.