Plains All American Pipeline, L.P. (Plains) is engaged in the transportation, storage, terminalling and marketing of crude oil and refined products, as well as in the processing, transportation, fractionation, storage and marketing of natural gas liquids (NGL).
The first stage of labor is the longest and involves three phases: 1  Early Labor Phase âThe time of the onset of labor until the cervix is dilated to 3 cm. 2  Active Labor Phase â Continues from 3 cm. until the cervix is dilated to 7 cm.  Transition Phase â Continues from 7 cm. until the cervix is fully dilated to 10 cm.
Dilated and effaced â What they mean in Labor. Dilation and effacement refer to the condition of the cervix during pregnancy and labor. Dilation refers to the opening of the cervix, while effacement refers to the ripening (thinning and softening) of the cervix. Dilation is measured in centimeters, from 0 to 10. Your cervix is fully open and you should be able to push when it is dilated to 10 centimeters.