It follows an announced inspection of the youth facility in North County Dublin in March.
The report by HIQA found that only 2 of 10 standards at the Children Detention Campus in Oberstown were compliant.
Of the ten standards assessed at the detention centre, two were major breaches, six had moderate non-compliance and just two were up to scratch.
Inspectors identified two serious risks over the management of medicines. An immediate action plan was issued over the safe administration of a prescribed medicine, and ensuring that measures were in place to store drugs securely.
There also continued to be a number of instances of juvenile spending prolonged periods of time locked up for behavioural issues and a lack of oversight in the monitoring of this.
On the positive side, HIQA found that healthcare on the campus had improved, children were listened to, given information about their rights and their educational needs were met.