Following the Rules to the Letter

This page is the CodyCross answer for the clue below from Transport, Group 119, Puzzle 5.

Question is: Following the Rules to the Letter

and the answer is: BYTHEBOOK

Word Meaning:

BY THE BOOK — (idiomatic) In a manner which strictly adheres to rules, legal requirements, or official procedures.

Definitions from Wiktionary.

Following the rules to the letter — CodyCross Answer | CodyCross Solutions