"First the use of Cyberwear probably varies from Planet to Planet, as local laws dictate. Therefore the ramifications here are that one may not be allowed to leave the starship because you have these mods, just as one can not carry around an Semi-Automatic Rifle."
Somewhat similar to the way I used to handle cybernetics. The Imperium (and the universe in general) being filled with such a diversity of culture, philosophy and technology that no two cultures treat it the same.
However ... I had the Imperium, as a whole (the interstellar laws) treat cybernetics as registered and controlled items (legal for all who could afford them but documented and regulated). After all, there were some who, for medical reasons, recieved cybernetic prostheses.
Under Imperial guidelines all citizens who recieved bio-mechanical organs, limbs or implants were required by law to possess on them, at all times, both documentation of what bio-mechanical enhancements they recieved, whether it was as a result of elective surgery, the specifications of the enhancement (does the implant, appendage or organ merely mimic what it replaced or is it a significant improvement - +10% or higher being considered such), the registration code ... and ... a remote disabling code for any non-critical (to life) enhancements.
Yes ... a disabling code. It must be provided before embarking on any form of public transport (be it bus, train, stagecoach, ocean liner, aircraft, ships boat, starship - anything that serviced passengers) or entering any government building/facility. Some private businesses may require it as well (and are supported by Imperial law if they choose to place such restrictions on their clientele).
The code is placed into the system and security officers (and, in some cases, stewards/stewardesses) carry a small deactivator (sorta like the device we use now to be able to remotely unlock our cars) so if someone who has enhanced bio-mechanics attempts to use them in a threatening or dangerous way can have them deactivated.
Bio-mechanical prostheses that do not enhance abilities still have remote deactivation designed into them. The law only makes a distinction between life-sustaining bio-mechanics (LSBM)and non-life-sustaining bio-mechanics (NLSBM).
The documentation generally takes the form of chips that are already parts of the various LSBMs and NLSBMs. Passengers and visitors who pass through security gates have their chips scanned and the codes are automatically uploaded.
Some ships and facilities may require seperate documentation on person to be provided upon request for duplication for their records or manifests.
Hehe ... sounds like a bit of a pain?
Penalties: Anyone possessing NLSBMs without documentation or disabling codes are subject to arrest, imprisonment and fine as well as removal of the NLSBMs. Anyone possessing LSBMs without documentation are subject to arrest and fines and detainment until a chip is implanted or official documentation, in lieu of surgery, is obtained (at the owner's cost).
Ok ... so much for interstellar law ...
Each planet may also have laws and restrictions that deal with bio-mechanics. Some may not at all. Some low tech planets may be ignorant of their origin and that's where fear and superstician kick in. Some hi-tech planets may be more restrictive than Imperial interstellar law and make it harder or even impossible for citizens who have bio-mechanics to freely visit.
I never got into percentages. Maybe a planet frowns on a citizen who electively recieved a bionic arm that can punch holes through steel but welcomes the Marine veteran who had his arms and legs blown off in the war and now has bio-mechanical ones that operate almost as well as the original appendages did (albiet with hums and squeeks and not looking quite as natural).
Anyhow ... that's pretty much how I handled cybernetics in Traveller.
