Col Regs – Rule 4 Explained by Andy Rowlands | Apr 2, 2019 | IRPCS/ColRegs, Resources, Uncategorised | 0 comments Rule 4 Application Rules in this Section apply in any condition of visibility. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to print (Opens in new window)Like this:Like Loading... Submit a Review Cancel reply Your e-mail address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.