This is the 10372nd most frequent Catalan word.
preceptius
Mandatory; required by rules or laws.
In this sentence, 'preceptius' is used as an adjective modifying 'tràmits', indicating that the procedures are mandatory or prescribed by rules or laws.
Els tràmits preceptius per a la sol·licitud han de ser complets abans del termini.
The required procedures for the application must be completed before the deadline.
Here, 'preceptius' describes 'requisits', showing that the requirements are obligatory as stipulated.
És imprescindible seguir els requisits preceptius per entrar al programa.
It is essential to follow the mandatory requirements to enter the program.
In this case, 'preceptius' qualifies 'llibres', meaning the books are obligatory or required for the course.