It usually arrives the same way: a reorg, a new role, a departing colleague, or a single sentence in a meeting — "You've got PCI now." Suddenly you're responsible for a standard written for specialists, with hundreds of requirements, its own vocabulary, and an assessor somewhere in your future.
And underneath the to-do list is the part nobody says out loud: the quiet worry that you'll get something wrong without realizing it. That you'll pick the wrong questionnaire, miss something that was in scope all along, or walk into an assessment unprepared.
That feeling is normal, and it's not a reflection of your ability. You weren't hired to be a PCI specialist. You just need a map.