Is there a requirement to have 6 months’ experience every 2 years to maintain the validity of the Part-66 licence?

Is there a requirement to have 6 months’ experience every 2 years to maintain the validity of the Part-66 licence? If I don’t meet anymore the 6 months’ requirement, how can I get back my right to exercise my privileges. If so, on which aircraft may I demonstrate this experience ?
The requirement of 6 months’ experience within the preceding 2 years is only for the validity of the certification authorisation. The licence itself is valid 5 years from the last renewal. Only the certification privileges are affected by the recency of experience.
To regain your experience, you may:
•    either continue to accumulate maintenance experience until you gain the missing time  required, or
•    meet the provisions for the issue of appropriate privileges, which means:
•    going to a type-training course again, including OJT as necessary, or
•    when the aircraft does not require a training (aircraft belonging in Group 2 or 3), pass a type-examination, including practical assessment. See GM 66.A.20(b)2.
Neither a short period of job training session nor an aircraft type refresher training are acceptable.
Demonstration of experience should be made on similar aircraft.
Definition of ‘similar’ aircraft is provided by the AMC to 66.A.20(b)2.
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