A centigram is a unit of mass in the Metric System. The symbol for centigram is cg. Select one of the centigram conversions below: 1  Centigram to Decigram (cg to dg)  Centigram to Gram (cg to g)
If there is no entry in the field, the person has not been background checked. Beneath the Reference Number field is a field named âExpiration Date.â If the date in this field is 99/99/99, this indicates that the background check for this employee is ACTIVE. If there is any other date in this field, this tells you that the background check for this employee has expired.
USCIS has discussed implementing a rule requiring permanent residents to replace green cards that lack expiration dates, but no such rule has been implemented to date. While more recent versions of the green card expire every ten years, valid green cards issued in the 1970âs and 1980âs may not have an expiration date. Older green cards with no expiration dates can create other problems for travelers.