Some pages are verified on Facebook with a blue check mark while some have a gray check mark. 

The gray checks will be going away. 

Marketing Land reported, "Facebook’s gray verified pages offered small businesses an easy way to verify their Page actually belonged — and was being managed — by the company, same as Facebook’s blue verified badges work for public figures, media companies and brands."

If this applies to you, it just means you need to keep your page looking polished and professional.