A Registered Architect has demonstrated through their education, training, and experience that they have the level of skill, knowledge, and competence required to practice as an Architect in Ireland.
https://www.riai.ie/work-with-an-architect/why-your-architec...

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To become a registered Architect, it usually takes five years' full-time study in the recognised schools of Architecture, followed by a minimum of two years approved experience, and one of the recognised Professional Practice qualifications [1] to gain admission to the RIAI . In all, it takes a minimum of seven years to gain registration. More details can be found on the RIAI website.

An alternate route to the Register is available through the ARAE (Architects Register Admission Examination) [2]- this provides an opportunity for those without the required educational and professional qualifications to enter the Register in Ireland. This examination has operated successfully since 2009.

https://en.wikipedia.org/wiki/Professional_requirements_for_...