[CQ-Contest] IRC (International Reply Coupon) Questions

[Andrei Stchislenok]

Sorry for possible off-topick.

I have received some IRC coupons with QSL's for YN2S.
How does it work nowadays?
Should I go po USPS and exchange them to 90c stamps for overseas mail, or
should I bring all envelopes to USPS and have them stamp envelopes for every
IRC coupon instead?

Also if IRC coupon issued in USA,  are they valid to use in USA or coupons
must be issued in other country?

I found this remark on some USA QSL manager web page:

"IRCs are not valid in the country of issue. All IRCs must be issued outside
of the USA for my use." [end of quote]

Is this right?

Thank you in advance.
-- 
73's Andrei NP3D
WAS RTTY #455 from NY(all via LoTW)
WAS RTTY #549 from MA (all via LoTW)
DXCC RTTY #1,832 (all via LoTW)
WAZ RTTY #184
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