Template:Certification Table Entry/Sales/PolishPeriod/doc
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 | This is a documentation subpage for Template:Certification Table Entry/Sales/PolishPeriod. It may contain usage information, categories and other content that is not part of the original template page. |
This helper template calculates periods for Polish certifications, according to the sources from ZPAV article:
References
It returns:
| Before April 1997 | Before June 2002 | Before June 2004 | before June 2006 | Before June 2015 | Before 2025 | From 2025 |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
Returns 0 if the data provided is not sufficient.