This is the 4185th most frequent French word.
disciplinaire
Relating to discipline or enforcing rules.
Here, "disciplinaires" characterizes "règles," suggesting that the rules pertain to maintaining discipline.
Ce manuel contient des règles disciplinaires à suivre.
This manual contains disciplinary rules to follow.
Here, "disciplinaire" describes the nature of the measures taken, signaling they pertain to discipline or correction.
Le conseil a pris une mesure disciplinaire contre l'étudiant.
The council took disciplinary action against the student.
In this sentence, "disciplinaires" qualifies the term "problèmes," indicating issues related to discipline.