To let everyone feel safe and secure. Both are necessary to ensure a safe product. Also see safety engineering for a discussion of the procedures used to design safe systems. The target for 2030 is to ensure access to safe and affordable housing. It appears to be relatively safe in pregnancy. Reassurance in a calm, safe environment is beneficial. It appears to be generally safe in pregnancy. Personnel were also prepared to help restore access to safe water. Flooding can jeopardize access to safe water. Firearms must be stored in an approved safe. Rural areas lacked access to safe water supplies. Most Iraqis had no access to safe drinking water. Both are important in design of efficient and safe structures. Some languages like Perl provide both safe and unsafe versions. A number of safe and effective oral vaccines for cholera are available.