div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader039fdocumentsinreader039viewer20220310035b85e8127f8b9a9a4d8bac8chtml5page1jpg target=_blank img data-url=documentthe-national-board-certificate-of-authorization-data-sheetsrcertificate2987htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: THE NATIONAL BOARD Certificate of Authorization … Data SheetsR_Certificate_2987 · In Accordance with the National Board Inspection Code Certification Number: Issue Date: Expiration loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader039fdocumentsinreader039viewer20220310035b85e8127f8b9a9a4d8bac8chtml5thumbnails1jpg width=140 height=200 adivdiv