Renewals are only distinguished in the PC by the reduced fees, 4 hour minimum for training, and restrictions on some administrative components (fingerprints, psych testing, etc.).
That said, and something we'll be addressing, many sheriffs have their own version of a renewal. It does tend to favor existing license holders in that most renewals do not expressly challenge license holders to as-completely "re-justify" the license.
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My comments are not the official position or a statement of any organization unless stated otherwise. My comments are not legal advice; if you want or need legal advice, hire a lawyer.