Here are two nice disclaimers that I came across, and which certainly apply here:
Caveats aside, we hope that this collection will facilitate your flying, and invite you to send along any suggestions, corrections, and new data to John Leibacher ( john.leibacher.wstx@gmail.com ). Fly safely!
Notes:
The following Transponder Mandatory Zones (TMZ) are
active on weekdays from 09:00 until 17:00 local time,
excl. holidays:
Lower limit of Dutch Mil TMA's A, C and E Class B is
raised from FL065 to FL095 from FRI 1700 to MON 0000 LT
and during legal holidays. However, this does not apply
to TMZ A, C, D North and E. As a result gliding above
FL 065 in EHAA FIR is not possible during both weekdays,
weekends and legal holidays without mode S transponder.
Be careful: Upper limit of Dutch Mil TMA B is always
FL065, airspace above Dutch Mil TMA B is Amsterdam CTA
East class A!
If a transponder is carried it should also be activated
outside TMZs.
Please contact John Leibacher with any suggestions concerning this material.
The following Transponder Mandatory Zones (TMZ) are
always active:
TMZ Eelde: 1500 ft - FL 065
TMZ Maastricht: 1500 ft - FL 195
TMZ A: FL 065 - FL 195
TMZ C: FL 065 - FL 195
TMZ D: 2500 ft - FL 195
TMZ E: FL 065 - FL 095
TMZ Rotterdam: 2500 ft - FL 055
TMZ Eelde: 1200 ft - FL 065
TMZ Maastricht: 1200 ft - FL 195
TMZ A: 1200 ft - FL 195
TMZ B: 1200 ft - FL 065
TMZ C: 1200 ft - FL 195
TMZ D: 1200 ft - FL 195
TMZ E: 1200 ft - FL 095
TMZ G1: 1200 ft - FL 055
TMZ Rotterdam: 1200 ft - FL 055