In regards to the CPS ASEC, for years from 2005 on we have replicate weights. For years prior to 2005, which variables in the IPUMS dataset, if any, represent survey design elements such as strata or clusters, or are indicators of or proxies for such elements, for purposes of doing variance estimates?

I have read this paper:

https://international.ipums.org/international/resources/misc_docs/user_note_variance.pdf

But the discussion is so general that I can not tell which of these methods are actually available given the information which is present in the IPUMS ASEC sample.

For years prior to 2005, is there a standard or preferred method for calculating variance or standard errors for means? For regression coefficients? I am interested in approaches that would generally be considered good professional practice, without being esoteric or merely fussy.