As to the timing of submissions, COMESA’s Competition Rule 3 provides that when a time period runs out on a weekend or holiday (Saturday, Sunday or other day the CCC is closed) the submission may be made the following day (not a Saturday, Sunday or other closure day). The Competition Regulations do not have any parallel provision regarding timing.
So do the Rules govern the Regs?
According to an official from the CCC, the Rules are promulgated pursuant to the Regulations. As they are designed to facilitate the operation of the Regulations, the Rule 3 computation of time is likewise applicable to the Regulations (where not otherwise specified).
Therefore, no need to file prior to the expiration on a weekend day — rather, file immediately afterwards.