The tattoo is next after the implementation and getting people familiar with the RFID chip. The Mark will have to be visible on the forhead or right hand as not only will it be required to buy or sell, or for tracking, it’s a public proclamation of worship of the Beast.
Revelation 13:15-18
15 And he had power to give life unto the image of the beast, that the image of the beast should both speak, and cause that as many as would not worship the image of the beast should be killed.
16 And he causeth all, both small and great, rich and poor, free and bond, to receive a mark in their right hand, or in their foreheads:
17 And that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name.
I found this interesting also if why the tatoo in this particular instance woukd e important, im not making judgements on tattoos or people that have them.
Leviticus 19:28
Ye shall not make any cuttings in your flesh for the dead, nor print any marks upon you: I am the LORD.