no
I would think that the Comp Tia A+ certifaction is the most sought after in the IT idustry.
yes it does expire every 2 years this link will help you have a inner look of the certification expiration
After you pass your essentials exam, you have to choose what you want to specialize in, You have three options: helpdesk, helpdesk remote and PC tech. I know people who work for dell and One of the requirerments is an A plus certification
There isn't a 'forklift license' in the US. Some companies may issue a forklift certification which potentially could expire.
yes
LCDs [according to CertBlaster - Comp TIA A+ Essentials 220-701, Drill 1.]
can you recertify if you let your certification to expire.
Without any more information than this to go on - I'd say that the Workman's Comp claim was denied (i.e.: notcertified)
If you are referring to EPA certifications for refrigerants, they do not expire and the issuing agency can get you a new one.
Re-certification is recommended to keep up on ever changing technology. The basic cirtifications expire in two years. Advanced and Master certifications last four years.
Usually they are valid up to 180 days.