No is the short answer. All new certificates or updated ones are automatically loaded onto MyJOG the next morning after your have been issued it by IRC. You can navigate to MyBoats and Edit Boat, then you can select the option Notify Me on IRC Update. This will send you an automated email when the certificate is updated.
If you have a shorthanded IRC certificate and you are sailing double handed, You can amend each of your race entries to use your shorthanded certificate.
To do this, click on My Race Entries when logged into your MyJOG account. Manage each race entry ensuring that you select Double Handed and then "Use my Shorthanded Certificate"
If you do not see the option for the Shorthanded certificate, this is because JOG have not yet received one automatically from IRC.
Clicking on My Boats, you will see both your primary and your shorthanded certificate.
Note that entry fees are based on the class that you as a result of your primary IRC certificate.
JOG usually automatically recieves your new IRC Certificate the morning after it is sent to you by the rating office. There is no need to notify JOG of your new certificate as the JOG systems check every 5 hours.