https://regulations.justia.com/regulations/fedreg/agencies/national-aeronautics-and-space-administration/2019/02/21?registers=between Wed, 01 May 2024 19:51:25 -0700 Wed, 01 May 2024 19:51:25 -0700 Justia Regulations Tracker Copyright 2011 Justia Inc. https://regulations.justia.com/images/justiafedregulations.gif https://regulations.justia.com/regulations/fedreg/agencies/national-aeronautics-and-space-administration/2019/02/21?registers=between https://regulations.justia.com/regulations/fedreg/2019/02/21/2019-02990.html https://regulations.justia.com/regulations/fedreg/2019/02/21/2019-02990.html Thu, 21 Feb 2019 00:00:00 -0800 2019-02990 Notice https://www.govinfo.gov/content/pkg/FR-2019-02-21/pdf/2019-02990.pdf