Final answer:
The question lacks the necessary context to accurately determine when the three tests were implemented into RIBO, as the acronym RIBO is not defined.
Step-by-step explanation:
The question "What time did they have the three tests implemented into RIBO?" seems to refer to a historical event or a specific policy change related to RIBO. Unfortunately, without further context, it is not clear what RIBO stands for or the nature of the three tests. RIBO could potentially be an acronym for a regulatory body, institution, or a term specific to a certain field. Additional information would be required to provide an accurate and detailed answer about when the three tests were implemented. Please provide more context or clarify the acronym RIBO and the domain it pertains to.