Insurance / license requirements for building/installing steel handrail.

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A friend of mine who works at a engineering consulting firm has approached me about building 135' of steel handrail with ADA grabrail for a city park they are building.  This would be on an ADA ramp, it includes all the normal rules for handrail/guardrail installed above adjacent 30" grade in California. I understand the OSHA and building requirements, but as a small shop owner, what insurances and licenses should I have to actually install this Legally? Do I have to hold a contractors license to install, and if so, should I look to sub out the install and just build it? Also, as far as the actual fabrication of the stairs go, the design was spec'd by the architect.  I would use GMAW with .035" wire,  the handrails will all go to galvanizing then powdercoating after fabrication. Any additional things I should think about with this? I imagine there will be some field fitting, as it is 8% grade for 30ft, then a 6ft landing, following by 8% grade, and so on.  I would incorporate slip joints, but I still imagine having to do some field fitting to make sure all is copacetic.  I know that with certain jobs, funded by state etc, require all "contractors" to hold certain licensees and insurances just to set foot on a job site.  I don't want to open myself up to liability, or be halfway into the job and be red taped because of something I didn't or did do.  I am not sure what all questions I should be asking, so hopefully you all could help me out.  Thanks in advance,
Reply:Contact the state, ask for vendor info/package.  Will you be a sub.  Or working directly for a state agency ?  Good luck.
Reply:Around here you would need a specialty license to build it, a general license to install it, a whole mess of different insurances and endorsements, welding certifications, MTR's, certified payroll, apprentice program, business license and tax certificate for the city, stamped plans, approved shop drawings, approved material samples, welding inspections, and maybe a job bond.Edit: don't forget the DIRIan TannerKawasaki KX450 and many other fine tools
Reply:Los Angeles:  http://eng.lacity.org/techdocs/stdpl...%20x%2011).pdfEd Conleyhttp://www.screamingbroccoli.com/MM252MM211 (Sold)Passport Plus & Spool gunLincoln SP135 Plus- (Gone to a good home)Klutch 120v Plasma cutterSO 2020 benderBeer in the fridge
Reply:Originally Posted by jrnico…….Also, as far as the actual fabrication of the stairs go, the design was spec'd by the architect.  I would use GMAW with .035" wire,  the handrails will all go to galvanizing then powdercoating after fabrication. Any additional things I should think about with this? I am not sure what all questions I should be asking, so hopefully you all could help me out.  Thanks in advance,
Reply:Prefab as much as you can in your shop and take it all onsite to do the final fitup and welding and make your sleeve joints. Make sure everything jives before you send off to galvanizing.  Drill holes for hanging where you want them, if you don't, the galvanizers will drill them where it's most convenient for them, which is probably exactly where you don't want them.