All returns of tangible personal property owned January
1 of any year, including mobile homes, business equipment and machinery
and tools, shall be filed by every person liable for the tax on such
property, with the office of the Commissioner of Revenue, on forms
approved by such office, on or before the 15th day of February of
each calendar year, with the exception of motor vehicles, trailers,
boats and mobile homes that acquired a situs within the County or
are transferred to a new owner in the County after January 15, for
which the deadline for filing a return shall be 30 days following
the date of such transfer or acquisition of situs in the County.