This is the 15194th most frequent Polish word.
sejmowa
Relating to the Sejm (the lower house of the Polish parliament).
The word 'sejmowa' is an adjective relating to 'sejm', meaning 'parliament', modifying 'komisja' (committee). It indicates that the committee is associated with the parliament.
Sejmowa komisja aprobowała nowy projekt ustawy.
The parliamentary committee approved the new bill proposal.
Here, 'sejmowe' refers to 'report' (sprawozdanie) being associated with or issued by parliament, showing the attributive use of 'sejmowy' as a descriptive adjective.
Sprawozdanie sejmowe zostanie opublikowane jutro.
The parliamentary report will be published tomorrow.
In this context, 'sejmowe' modifies 'plany' (plans), indicating the plans related to parliament, thus providing a descriptive link.