#	Letters of Interpretation
1	11/03/2023 - 1910.1020(d)(1)(ii) - Retention of atmospheric monitoring records for a permit-required confined space
2	11/03/2023 - 1910.1020(d)(1), 1910.1020(d)(1)(ii) - Retention of atmospheric monitoring records for a permit-required confined space
3	05/26/2006 - 1910.1020(d)(1)(ii) - Requirements for maintenance of employee exposure records and alternative methods for long-term retention.
4	11/30/2005 - 1910.1020(d)(1)(i) - Qualifications for interpreting/classifying chest roentenograms and maintenance of interpretation forms.
5	11/30/2005 - 1910.1020(d)(1), 1910.1020(d)(1)(i) - Qualifications for interpreting/classifying chest roentenograms and maintenance of interpretation forms.
6	08/01/2002 - 1910.1020(d)(1)(ii) - Record retention requirements for indoor air quality documents and reports
7	08/17/2000 - 1910.1020(d)(1) - Noise exposure measurement records must be retained for 2 years.
8	04/01/1999 - 1910.1020(d)(1)(ii) - Maintenance and preservation of employee exposure records
9	01/13/1986 - 1910.1020(d)(1)(ii)(B) - Maintaining MSDSs on a computer data base.
10	05/14/1981 - 1910.1020(d)(1)(i) - Interpretation on the retention of x-ray films and employee access.
11	05/12/1981 - 1910.1020(d)(1) - Medical record retention requirements when companies contract outside agencies.