The ten-year limitations period is not absolute. It can be extended if you voluntarily agree to do so. Back in the bad old dates (before 1998), the IRS used to put enormous pressure on taxpayers to agree to extend the limitations period beyond ten years--such extensions often lasted for ten or even twenty years.
Certified Ethical Hacker. Certified Ethical Hacker (CEH) is a qualification obtained by assessing the security of computer systems, using penetration testing techniques. The code for the CEH exam is 312-50, and the certification is in Version 9 as of 2016.
All in all, the process of becoming an HVAC Technician will take years to complete. However, one can enjoy the benefits of easy employment and commanding a high rate of pay when they become a fully licensed HVAC specialist. The other method is through becoming an apprentice of a licensed HVAC Technician. 2  Though not as formal as a training course, this method allows a person to quickly get hold of the basics of HVAC services while also applying them in actual scenarios.