劳动部现在叫做劳动和社会保障部 － Ministry of Labor and Social Security
http://www.molss.gov.cn/index/index.htm

以前劳动部的全称是劳动人事部，现在好像分成了两个部：劳动和社会保障部和人力资源和社会保障部。

现在锅炉局的全称为“职业安全卫生与锅炉压力容器监察局”，属于劳动和社会保障部。也许以前的锅炉局就只管锅炉。
有人说它的英文名称是Professional Safety and Health and Boiler Pressure and Vessel Supervision Bureau。
http://ks.cn.yahoo.com/question/1306122315247.html
我认为应该译成Supervision Bureau of Occupational Safety & Health and Boilers & Pressure Vessels 。既然原文简写了，那么译文也可简写为 Supervision Bureau of Boilers。

BTW, 美国有个 Occupational Safety & Health Administration (OSHA)， 属于 U.S. Department of Labor.
http://www.osha.gov/



--------------------------------------------------
Note added at 4 hrs (2009-01-07 02:37:39 GMT)
--------------------------------------------------

or Boiler Supervision Bureau under the former Ministry of Labor

--------------------------------------------------
Note added at 5 hrs (2009-01-07 03:50:37 GMT)
--------------------------------------------------

经进一步调查，发现“人力资源和社会保障部”是由原“劳动和社会保障部”与原“人事部”合并而成的。
http://www.mohrss.gov.cn/mohrss/Desktop.aspx?PATH=/sy/jzhgej