The NTA is also evaluating the feasibility of more shelters once they're completed.
Five new bus shelters are set to be rolled out in Laois next year.
Borris-in-Ossory, Castletown, Newtown, Crettyard and Ballylinan are set to benefit, with the National Transport set to evaluate the feasiblity of more shelters in those areas once the first five are completed.
The NTA is working with local authorities to implement bus shelter programmes at county level.
The planning and execution of those preparatory works can be more efficiently undertaken by county councils after which the new shelters are installed by the NTA's contractor.
It notes that shelters are not generally provided at bus stops with less than five services a day and road safety surveys are required to determine their suitability on national roads.
Speaking to Midlands 103, a National Transport Authority spokesperson said;
"The provision of bus shelters is a statutory function of the NTA. However, the NTA endeavours to work together with local authorities to coordinate the development and implementation of bus shelter programmes at county level rather than through piecemeal arrangements.
"This is necessary as the installation of a bus shelter will frequently require the upgrading of footpaths and / or roads as well as the relocation of underground services and the planning and execution of those preparatory works can be more efficiently undertaken by local authorities.
"This is the most cost effective and efficient process for the provision of bus shelters. It is important to note that all of the capital costs associated with the provision of bus shelters are funded by the NTA."