How to notify us over the holiday period.
Notifications  
If someone has been seriously injured, become seriously ill, or died as a result of work – phone us on 0800 030 040 straight away. We have staff available to respond to these 24/7.
If you’re not sure what a notifiable event is, including your obligation to hold a scene, visit What events need to be notified?
Notifications made through our online form won't be monitored between 12pm on Tuesday 24 December 2024 and 8.30am on Monday 6 January 2025.
If you’re not sure if you need to notify us, use our online notification system and we’ll respond to you after 6 January 2025.
Health and safety concerns
If you have a health and safety concern that isn’t urgent, use our online form and we’ll respond to you after 6 January 2025.
Raise a health or safety concern
General enquiries
General enquiries made by phone or email after 12pm on Tuesday 24 December will be responded to from Monday 6 January 2025. This does not apply to notifications made by phone on 0800 030 040.
We wish you a safe and relaxing holiday.
Magnesium oxide fume
Malathion
Maleic anhydride
Manganese fume, dust and compounds, as Mn
Mercury vapour (as Hg)
Mercury, Alkyl compounds (as Hg)
Mercury, Inorganic compounds (as Hg)
Mesityl oxide
Methacrylic acid
Methane
Methomyl
Methoxychlor
2-Methoxyethanol
2-Methoxyethyl acetate
4-Methoxyphenol
Methyl acetate
Methyl acetylene-propadiene mixture (MAPP)
Methyl acrylate
Methyl amyl alcohol
, 4-methyl-2-pentanol
N-Methyl aniline
Methyl ethyl ketone
Methyl formate
Methyl isoamyl ketone
Methyl isobutyl ketone
, 4-methyl-2-pentanone
, isobutyl methyl ketone
, isopropylacetone
Methyl methacrylate
Methyl silicate
α-Methyl styrene
Methyl-2-cyanoacrylate
1-Methyl-2-pyrrolidone
Methyl-tert butyl ether
Methylacrylonitrile
Methylamine
Methylcyclohexane
Methylcyclohexanol
o-Methylcyclohexanone
2-Methylcyclopentadienyl manganese tricarbonyl, as Mn
4,4-Methylene bis(2-chloroaniline)
, MBOCA
, 3,3'-dichloro-4,4'-diaminodiphenylmethane
, methylene bis(chloroaniline)
Methylene bis(4-cyclohexylisocyanate), as -NCO
Methylene bisphenyl isocyanate, as -NCO
4,4-Methylene dianiline
Metribuzin
Molybdenum, as Mo Insoluble compounds
Molybdenum, as Mo Soluble compounds
Monochloroacetic acid
Morpholine
Last updated