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Fáilte to the ASTI website.

The ASTI is Ireland's main second level teachers union and represents 18,000 teachers in community schools, community colleges, comprehensive schools and voluntary secondary schools attended by 80% of all second-level students. The ASTI acts as a professional association voicing the concerns and interests of the teaching profession at second-level and as a registered trade union which protects teachers and fights for improvements in their pay and conditions of employment.