A DPN is a 21-day race from the issue date. Knowing if it is a lockdown or...

https://lima-wiki.win/index.php/What_happens_if_I_miss_the_21-day_window_on_a_Director_Penalty_Notice%3F

A DPN is a 21-day race from the issue date. Knowing if it is a lockdown or non-lockdown notice is vital for your client's defence. I have unpacked the mechanics of this here in plain language, so you can triage fast and keep options open.