The List of CFR Sections Affected (LSA), which is available in the Federal Register Library, contains proposed, new, and amended Federal regulations that have been published in the Federal Register since the latest revision date of a CFR title. Each LSA issue contains the CFR part number, section number, its status indicating whether it was amended, confirmed, or revised, and the page number in the Federal Register where the change may be found. You can use the LSA to determine if the federal regulation you are looking at is the most current version of the regulation. You can also use the LSA to look at the history of a Federal regulation to determine if the regulation has been removed, revised, changed titles, or was recodified at some point. In addition to each issue of the LSA, HeinOnline also has the four LSA Compilations covering 1949-63, 1964-72, 1973-85, and 1986-2000. The compilations are often easier to search across if you don’t know the specific issue within which a regulation might appear.
To illustrate how to use the LSA to determine the history of a Federal Regulation, we will look at regulation 29 CFR 1910.1001, entitled “Asbestos“. We are specifically looking for this regulation as it was introduced in 1972.
First, let’s run a search for 1910.1001 in the CFR. To do this, open the field search option from within the CFR Library. Enter 1910.1001 in the first search box, click on word, and select Text from the drop down menu. Then enter the title number, 29, into the second search box and select Title Number from the drop down menu. Enter 1910 into the last search box and select Part Number from the drop down. Now, change the sort by method to Volume Date (Ascending) so that we can see the earliest point in time that this section appeared in the CFR. Click search.
Our search returns 27 results. The first result indicates that the earliest it appeared in the CFR was in 1975. However, we know in discussions regarding this regulation that it appeared in the CFR prior to 1975. Therefore, we need to determine how to find the old regulation prior to 1975.
To do this, we can reference the CFR Compilation of Sections Affected from within the Federal Register Library to determine if the regulation had been amended, revised, renamed, or recodified in the past. Open the Federal Register Library and click on Code of Federal Regulations – Compilation of Sections Affected from the listing of titles. Since we are looking for the regulation as it appeared in our search results in 1975, we want to look in the compilation covering 1973-1985 (Titles 28-41).
Once the volume opens, click on the Table of Contents tab to load the Table of Contents in the left sidebar. Then, scroll through the Table of Contents until you see Title 29 and click on the page link, in this case page 21.
Now we want to scroll through the pages of Title 29 until we find the year 1975 and 1910.1001. In this case, it appears on page 28 on the bottom right corner of the page. The notes listed for 1910.1000-1910.1017 indicate that these sections were recodified from 1910.93-1910.93q.
It then lists a page number, 23072, which is the page number within the Federal Register where you can view the changes and understand why it was recodified. So now, we can click on the Citation Navigator tab, select 40 (1975) from the drop down menu, insert the page number, 23072, and click get citation. This will take us directly to the page in the Federal Register that explains the recodification.
Now that we have researched and understand the history of the regulation 1910.1001, we can run a new search in the CFR library using the historical section number 1910.93a to view the regulation prior to 1975. To do this, enter 1910.93a into the first search box, click on word and select Text from the drop down menu. Then insert 29 into the next search box and select Title Number. Enter 1910 into the last search box and select Part Number. Then enter 1975 into the end date field to limit our search to documents prior to 1975.